Glossary of military abbreviations
List of abbreviations, acronyms and initials related to military subjects such as modern armor, artillery, infantry, and weapons, along with their definitions.
A
- A&TWF – Acquisition and technology work force
 - a – Army
 - AA – Assembly area 
- AA – Anti-aircraft
 - AA – Aegis ashore
 
 - AAA – Anti-aircraft artillery "Triple A"
 - AAAV – Advanced Amphibious Assault Vehicle
 - AAC – Army Air Corps
 - AAD – Armored amphibious dozer
 - AADC – Area air defense commander
 - AAE – Army acquisition executive
 - AAG – Anti-aircraft gun
 - AAK – Appliqué armor kit (US)
 - AAL – Additional authorization list
 - AAN – Army after next
 - AAP – Advance authority to procure
 - AAPC – Advanced armoured personnel carrier (Turkiye)
 - AARADCOM – Army Armament Research and Development Command
 - AAR – After-action review
 - AASLT – Air assault
 - AAV – Amphibious assault vehicle
 - AAV – Assault amphibious vehicle 
- AAW – Anti-aircraft warfare
 
 - AAWC – Anti-aircraft warfare coordinator
 - AB – Air burst
 - ABC – Atomic, biological, chemical (replaced by chemical, biological, radiological (CBR), and nuclear, biological, chemical (NBC)) 
- ABC – Automatic brightness control
 
 - ABCS – Automated battlefield control system
 - AB(C) – Aviation battalion (combat)
 - ABIT – Advanced built-in test
 - ABM – Air-bursting munition
 - ABM – Anti-ballistic missile
 - ABMD – Aegis ballistic missile defense system
 - ABMS – Air-bursting ammunition system
 - ABN – Airborne
 - ABNSOTD – Airborne and Special Operations Test Directorate
 - ABRO – Army Base Repair Organization
 - ABS – Aww-busting system
 - ABS – Anti-lock braking system
 - ABSP – Aegis ballistic missile defense (BMD) signal processor
 - ABSV – Armoured battlegroup support vehicle
 - ABU — Airman Battle Uniform
 - A/C – Aircraft commander
 - AC – Alternating current
 - ACAwa – ATEC contracting activity
 - ACA – Ammunition container assembly
 - ACADA – Automatic chemical agent detector and alarm
 - ACAVP – Advanced composite armoured vehicle platform (UK)
 - ACB – Advanced capability build
 - ACB/TI – Advanced capability baseline/technical insertion
 - ACC – Army contracting command 
- ACC – Aegis computer center
 
 - ACCE – Abrams/Crusader common engine
 - ACCV – Armored cavalry cannon vehicle (US)
 - ACD – Automated common diagrams
 - ACE – Armored Combat Earthmover (US)
 - ACEGIO – Advanced Conversion Equipment Group Input Output
 - ACF – Acquisition Career Field
 - ACF-TE – Acquisition Career Field-Test & Evaluation
 - ACH – Advanced Combat Helmet (MICH TC-2000 Combat Helmet)
 - ACIE – Army Clothing and Individual Equipment
 - ACLOS – Automatic Command to Line of Sight
 - ACM – Acoustic countermeasures
 - ACOG – Advanced Combat Optical Gunsight
 - ACOMMS – Acoustic communications
 - ACP – Automatic Colt Pistol 
- ACP – Alignment control panel
 
 - ACPU – Aft central processing unit
 - ACR – Advanced Combat Rifle
 - ACR – Armored cavalry regiment
 - ACRV – Armored command and reconnaissance vehicle
 - ACS – Artillery communications system 
- ACS – Aegis combat system
 - ACS – Air control supervisor
 - ACS – Anti-collision system
 
 - ACSC – Aegis combat systems center
 - ACTD – Advanced concept technology demonstration
 - ACTEDS – Acquisition career training and education development system
 - ACTS – Aegis combat training system
 - ACU – Army Combat Uniform 
- ACU – Antenna coupler unit
 
 - ACV – Aardvark clearing vehicle 
- ACV – Armored combat vehicle
 
 - ACVT – Armored Combat Vehicle Technology Program (US)
 - A/D – Analog to digital
 - AD – Air defense
 - ADA – Air defense artillery
 - ADACS – Automated data collection system
 - ADAM – Area denial artillery munition
 - ADAMS – Air Defense Advanced Mobile System (US)
 - ADAP – Advanced digital antenna production
 - ADAP – Army designated acquisition programs
 - ADATD – Air Defense Artillery Test Directorate
 - ADATS – Air defense anti-tank system 
- ADATS – Army Development and Acquisition of Threat Simulators
 
 - ADC-A – Assistant Division Commander – Fire and Maneuver
 - ADC-B – Assistant Division Commander – Combat Support
 - ADEA – Army Development and Employment Agency
 - ADF – Australian Defense Force
 - ADG – Acoustic display generator
 - ADI – Australian Defense Industries
 - ADM – Advanced development model 
- ADM – Acquisition decision memorandum (US)
 
 - ADMAS – Advanced distributed modular acquisition system
 - ADNS – Automated digital network system
 - ADP – Automated data processing
 - ADPE – Automated data processing equipment
 - ADS – Advanced display system
 - ADSS – ATEC decision support system
 - ADTD – Air Defense Test Directorate
 - AE – Action express
 - AEC – Army evaluation center
 - AECU – Antenna environmental control unit
 - AEF – Allied expeditionary force
 - AEP – Action entry panel
 - AER – Alteration equivalent to repair
 - AESA – Active electronically scanned array
 - AEW&C – Airborne early warning and control
 - AEV – Armored engineer vehicle
 - AF – Air Force 
- AF – And following (as "in DDG-113 AF ships will receive the AMDR radar")
 
 - AFB – Air Force Base
 - AFA/ARA – Aerial field artillery/aerial rocket artillery (US, Vietnam war era attack helicopter batteries employing 2.75 in. FFAR)
 - AFARV – Armored, forward area, re-arm vehicle (US)
 - AFAS – Advanced Field Artillery System
 - AFATDS – Advanced Field Artillery Tactical Data System
 - AFC – Australian Flying Corps
 - AFC – Army Futures Command
 - AFCS – Automatic Fire-Control Systems
 - AFD – Automatic Feeding Device
 - AFDL – Advanced Flight Deck Lighting
 - AFF – Active Fire-and-Forget
 - AFFLQ – Active Fire-and-Forget with Laser Cueing
 - AFFF – Aqueous Fire Fighting Foam (smothers fire cutting off oxygen)
 - AFOTEC – Air Force Operational Test and Evaluation Center
 - AFSC – Air Force Specialty Code
 - AFSS – Advanced Fire Support System
 - AFSV – Armored Fire Support Vehicle
 - AFTADS – Advanced Field Artillery Tactical Data System
 - AFV – Armored Family of Vehicles (US) 
- AFV – Armored Fighting Vehicle
 
 - AG – Assistant Gunner
 - AGC – Automatic Gain Control
 - AGF – Army Ground Forces
 - AGL – Above Ground Level
 - AGLS – Automatic Gun Laying System
 - AGS – Armored Gun System (US) 
- AGS – Advanced Gun System
 
 - AGV – Assault Gun Vehicle
 - AGVT – Advanced Ground Vehicle Technology
 - Ah – Ampere hour
 - AHA – Ammunition Handling Area
 - AHC – Attack Helicopter Company (USA)
 - AHE – Aircraft Handling Equipment
 - AHS – Ammunition Handling System
 - AHU – Air Handling Unit
 - AI – Action Item 
- AI – Area of nterest
 
 - AIC – Air Intercept Controller (US Navy)
 - AICS – Accuracy International Chassis System
 - AICW – Advanced Individual Combat Weapon
 - AIF – Australian Imperial Force (Australia, WWI or WWII)
 - AIFS – Advanced Indirect Fire System
 - AIFV – Armored Infantry Fighting Vehicle
 - AIPS – Advanced Integrated Propulsion System (US)
 - AIS – Automatic Identification System (US NAVY) 
- AIS – Automated Information System
 
 - AIT – Alteration Installation Team 
- AIT – Advanced Information Technology
 - AIT – Advanced Individual Training
 
 - AITAS – ATRRS Internet Training Application System
 - AK – Acknowledgement
 - AKO – Army Knowledge Online
 - AL&T – Acquisition, Logistics, and Technology
 - ALAAVS – Advanced Light Armored/Amphibious Vehicle System (US)
 - ALC – Advanced Land Combat (US)
 - ALDT – Administrative and Logistics Down Time
 - ALICE – All-purpose lightweight individual carrying equipment
 - ALMC – U.S. Army Logistics Management College
 - ALO – AEGIS Light Off
 - ALS – Advanced Laying System
 - ALS – Advanced Lighting System (flight deck)
 - ALSV – Armored logistics support vehicle
 - ALT – Armored launching turret
 - ALWT – Advanced Lightweight Torpedo
 - AM – Acquisition Manager
 - AMBL – Air Maneuver Battle Lab
 - AMC – United States Army Materiel Command
 - AMCAC – United States Army Materiel Command Acquisition Center
 - AMC – Advanced Mortar Carrier (Turkey)
 - AMCCOM – Armament Munitions and Chemical Command
 - AMCOM – Aviation and Missile Command
 - AMDBD – Army Medical Department Board
 - AMEDD – Army Medical Department
 - AMEDDC&S – Army Medical Department Center & School
 - AMDR – Air and Missile Defense Radar
 - AMDS – Anti-Missile Discarding Sabot
 - AMF – Amphibische Mehrzweck-Fahrzeuge (multipurpose amphibious vehicle)
 - AML – Automitrailleuse Légère (light armored car)
 - AMLCD – Active-Matrix Liquid Crystal Display
 - AMN – Afghanistan Mission Network
 - AMOS – Advanced Mortar System
 - AMPS – Afloat Master Planning System (US NAVY)
 - AMPV – Armored Multi-Purpose Vehicle
 - AMR – Anti-materiel rifle 
- AMR – Automitrailleuse de Reconnaissance
 
 - AMRAAM – Advanced Medium Range Air-to-Air Missile
 - AMRDEC – Air and Missile Research, Development, and Engineering Center
 - AMRWS – Advanced Multi-Role Weapon Station
 - AMS – Armored Mortar System
 - AMSAA – Army Materiel Systems Analysis Activity
 - AMSEC – Army Modeling and Simulation Executive Council
 - AMS-H – Advanced Missile System – Heavy
 - AMSO – Army Modeling and Simulation Office
 - AMX – Atelier de Construction d'Issy-les-Moulineaux
 - ANAD – Anniston Army Depot
 - ANR – Active Noise Reduction
 - ANZAC – Australia and New Zealand Army Corps
 - ANZUS – Australia New Zealand United States Treaty
 - AO – Area of Operations
 - AoA – Add-on Armor 
- AoA – Avenue of Approach
 
 - AOI – Arab Organization for Industrialization
 - AOP – Air observation post
 - AOS – Add-on stabilization
 - AOTR – Abbreviated Operational Test Report
 - AP – Anti-Personnel
 - AP – Armor-Piercing
 - APA – Army Procurement Appropriation
 - APAM – Anti-Personnel, Anti-Matériel
 - APBC – Armor-Piercing Ballistic Cap
 - APC – Army Personnel Centre 
- APC – Armored Personnel Carrier
 - APC – Armor-Piercing Capped
 
 - APCBC – Armor-Piercing Capped Ballistic Cap
 - APC-T – Armor-Piercing Capped – Tracer
 - APCT-BF – Armor-Piercing Capped Tracer – Base Fuse
 - APCNR – Armor-Piercing Composite Non-Rigid
 - APCR – Armor-Piercing Composite Rigid
 - APCRBC – Armor-Piercing Composite Rigid Ballistic Cap
 - APDS – Armor-Piercing Discarding Sabot
 - APDS-T – Armor-Piercing Discarding Sabot – Tracer
 - APE – Amphibisches Pionier-Erkundungsfahrzeug (amphibious front-line reconnaissance vehicle)
 - APEP – Armor-Piercing Enhancement Program
 - APERS – Anti-Personnel
 - APERS-T – Anti-Personnel Tracer
 - APFIDS – Armor-Piercing Fragmentation Incendiary Discarding Sabot
 - APFSDS – Armor-Piercing Fin-Stabilized Discarding Sabot
 - APFSDS-T – Armor-Piercing Fin-Stabilized Discarding Sabot – Tracer
 - APFSDS-P – Armor-Piercing Fin-stabilized Discarding Sabot - Practice
 - APFSDS-DU – Armor-Piercing Fin-Stabilised Discarding Sabot - Depleted Uranium
 - APG – Aberdeen Proving Grounds
 - APGM – Autonomous Precision-Guided Munition
 - APHC – Armor-Piercing Hard Core
 - APHE – Armor-Piercing High-Explosive
 - API – Armor-Piercing Incendiary
 - API-T – Armor-Piercing Incendiary – Tracer
 - APM – Anti-Personnel Mine
 - APMI – Accelerated Precision Mortar Initiative
 - APOD – Aerial Port Of Debarkation
 - APS – Advanced Propulsion System 
- APS – Artillery Pointing System
 
 - APSE – Armor-Piercing Secondary Effect
 - APSE-T – Armor-Piercing Secondary Effect – Tracer
 - AP-T – Armor-Piercing – Tracer
 - APTE – Abrams Power Train Evolution (US)
 - APU – Auxiliary Power Unit
 - APV – Armored Patrol Vehicle
 - AR – ArmaLite rifle 
- AR – Assault Rifle
 
 - AR/AAV – Armored Reconnaissance/Airborne Assault Vehicle (US)
 - ARB – Armored Robots
 - ARBDD – Armored Robots for Bomb Detection and Disposal
 - ARD – Anti-Reflective Device
 - ARDEC – Armament Research, Development and Engineering Center
 - ARDNOT – Automatic Day/Night Optical Tracker
 - ARE – Atelier de Construction Roanne
 - AREG – Army Regulation
 - ARETS – Armor Remote Target System
 - ARFORGEN – Army Force Generation
 - ARL – Army Research Laboratory (US)
 - ARM – Anti-Radiation Missile
 - ARMAD – Armored and Mechanized Unit Air Defense
 - ARMD – Armored
 - ARMSCOR – Armament Manufacturing Corporation (South Africa)
 - ARMVAL – Anti-armor Vehicle Evaluation (US)
 - ARNG – Army National Guard
 - AROC – Army Requirements Oversight Council
 - ARP – Anti-Radiation Projectile 
- ARP – Armored Repair Plates
 
 - ARRADCOM – Armament Research and Development Command
 - ARRV – Armored Repair and Recovery Vehicle
 - ARSV – Armored reconnaissance scout vehicle (US)
 - ART – Armored Recon Transport
 - ARV – Armored Recovery Vehicle or Armed Robotic Vehicle (XM1219)
 - ARTY – Artillery
 - ASA – Advanced security agency
 - ASAP – As soon as possible
 - ASARC – Army Systems Acquisition Review Council
 - ASCOD – Austrian Spanish Co-operative Development
 - ASE – Aircraft Survivability Equipment
 - ASI – Additional Skill Identifier
 - ASIP – Advanced System Improvement Program
 - ASM – Air-to-Surface Missile
 - ASP – Automatic, Self-Powered 
- ASP – Automation Support Plan
 
 - AST – ATEC System Team
 - ASTROS – Artillery Saturation Rocket System (Brazil)
 - ASV – Armored security vehicle (US) 
- ASV – Ammunition supply vehicle
 - ASV – Army supply vehicle
 
 - ASYMWAR – Asymmetric warfare
 - AT – Anti-tank 
- AT – Ape tape
 
 - AT&L – Acquisition, technology, and logistics
 - ATACMS – Army Tactical Missile System
 - ATACS – Advanced Tank Cannon System (US)
 - ATAS – Automatic Target Acquisition System
 - ATC – Aberdeen Test Center
 - ATCAS – Advanced Towed Cannon System
 - ATCCS – Army Tactical Command and Control System
 - ATD – Advanced Technology Demonstration 
- ATD – Advanced Technology Demonstrator (US)
 - ATD – Automatic Target Detection
 
 - ATDT – Automatic Target Detection and Tracking
 - ATDU – Armored Trials and Development Unit (UK)
 - ATE – Advanced Technology Engine
 - ATE – Automatic Test Equipment
 - ATEC – Army Test and Evaluation Command
 - ATFCS – Automated Targeting and Fire Control System
 - ATG – Anti-Tank Gun
 - ATGL – Anti-Tank Grenade Launcher
 - ATGM – Anti-Tank Guided Missile
 - ATGW – Anti-Tank Guided Weapon
 - ATIRS – Army Test Incident Reporting System
 - ATK – Alliant Techsystems
 - ATLAS – Advanced Technology Light Artillery System
 - ATLV – Artillery Target Location Vehicle
 - ATM – Anti-Tank Mine
 - ATO – Authorization To Operate
 - ATR-EDS – Automotive Test Rig – Electric Drive System
 - ATS – Atelier de Construction de Tarbes
 - ATSA – ATEC Threat Support Activity
 - ATTC – All Terrain Tracked Carrier
 - ATTS – Air Transportable Towed System 
- ATTS – Automatic Target Tracking System
 
 - ATV – All-Terrain Vehicle
 - ATV – Armored TOW Vehicle (Turkey)
 - AUDS – Anti-UAV Defense System
 - AUG – Armee Universal Gewehr
 - AUSA – Association of the U.S. Army
 - AUTL – Army Universal Task List
 - AV – Audio-Visual
 - AVGP – Armored Vehicle General Purpose (Canada)
 - AVH – Armored Vehicle Heavy
 - AVL – Armored Vehicle Light
 - AVLB – Armored vehicle-launched bridge
 - AVM – Armored Vehicle Medium
 - AVN – Aviation
 - AVR – Armored Vehicle Reconnaissance
 - AVRE – Armored Vehicle Royal Engineers (UK)
 - AVT – Advanced Vehicle Technologies (US)
 - AVTD – Aviation Test Directorate
 - AWACS – Airborne Warning and Control System
 - AWE – Advanced Warfighting Experiment
 - AWOL – Absent Without Official Leave
 - AWS – Alternative Work Schedule
 - AZ – Azimuth
 
B
- BAe – British Aerospace
 - BAI – Battlefield Air interdiction
 - BAMCIS – Begin the Planning, Arrange Recon, Make Recon, Complete Planning, Issue Order, Supervise
 - BAR – M1918 Browning Automatic Rifle
 - BARCAP – Barrier Combat Air Patrol
 - BARF – Base And Range Facilities
 - BARV – Beach Armored Recovery Vehicle
 - BAS – Battlefield Automated System
 - BAS – Basic Allowance for Substance
 - BASE – British Aerospace Systems and Equipment
 - BASOPS – Base Operations
 - BATES – Battlefield Artillery Target Engagement System
 - BAT – Biometrics Automated Toolset
 - BAWS – Biological Agent Warning System
 - BB – Base Bleed
 - BB – Battleship
 - BBSP – Blowback Shifted Pulse
 - BC – Battery Commander or Battalion Commander
 - BC – Battlecruiser
 - BCC – Battery Control Centre
 - BCIS – Battlefield Combat Identification System
 - BCP – Battery Command Post
 - BCS – Bridge Crossing Simulator
 - BCT – Brigade Combat Team (US)
 - BCT – Basic Combat Training
 - BCV – Battle Command Vehicle
 - BD – Base Detonating
 - BDA – Browning Double Action or Bomb Damage Assessment
 - BDAR – Battle Damage Assessment And Repair
 - BDE – Brigade
 - BDM – Bunker Defeat Munition
 - BDU – Battle Dress Uniform
 - BE – Base Ejection
 - BFA – Blank-Airing Adaptor or Blank-Firing Attachment
 - BFV – Bradley Fighting Vehicle
 - BFVS – Bradley Fighting Vehicle System
 - BG – Border Guard or Brigadier General
 - BG – Bombardment Group
 - BH – Black Hot
 - BHOT – Black Hot (image in a thermal sight)
 - bhp – Brake Horsepower
 - BIFF – Battlefield Identification Friend or Foe
 - BII – Basic Issued Item
 - BILL – Bofors, infantry, light and lethal, referring to RBS 56 BILL or RBS 56B BILL 2
 - BIT – Built-In Test
 - BIT/ST – Built-In Test/Self-Test
 - BITE – Built-in test equipment
 - BL – Blank
 - BL-T – Black tracer
 - BLITS – Beta lighted infantry telescope system
 - BLOS – Beyond Line-Of-Sight
 - BL-T – Blank – Tracer
 - BLT – Battalion Landing Team
 - BLR – Blindado Ligero de Ruedas
 - BLRIP – Beyond Low-Rate Initial Production
 - BLWE – Battle Lab Warfighting Experiment
 - BM – Brigade Major
 - BMC4I – Battle Management Command, Control, Communications, Computers, and Intelligence
 - BMD – Ballisitic Missile Defense
 - BMF – Belgian Mechanical Fabrication
 - BML – Battle management language
 - BMNT – Begin Morning Nautical Twilight
 - BMP – Pronounced "bimp". Former Warsaw Pact IFVs including BMP-1, BMP-2, BMP-3, etc.
 - BMR – Blindado Medio de Ruedas
 - BMS – Battalion Mortar System
 - BMS – Battlefield Management System
 - BNCC (USAF) – Base network control center
 - BN – Battalion
 - BNS – BILL Night Sight
 - BO – Blackout
 - BOCV – Battery Operations Center vehicle
 - BOG-Dwell – Boots on the Ground – Dwell (down time)
 - BOI – Basis Of Issue
 - BOL – Bearing-only launch
 - BOLTS – Bolt-On Loading Tray System
 - BOIP – Basis Of Issue Plan
 - BOSS – Ballistic Optimizing Shooting System
 - BOSS – Better Opportunity for Single Soldiers
 - BPI – Bolt Position Indicator
 - BPS – Battery Power Source
 - BPT – Be Prepared To
 - BPS – Battery Power Source
 - BR – Battle Rifle
 - BRAC – Base Realignment And Closure
 - BRDEC – Belvoir Research and Development Engineering Center
 - BRKR – Breaker
 - BRS – Brake Release Switch
 - BRSGHT – Boresight
 - BRT – Bright or Brightness
 - BSA – Base Support Agreement
 - BSB – Brigade Support Battalion
 - BSD – Boresight Device
 - BSP – Bright Source Protection
 - BSSG – Brigade Service Support Group
 - BST – Basic Skills Trainer
 - BT – Boat Tail
 - BT – Bullet Trap
 - BTA – Best Technical Approach
 - BTA – Battle Training Area
 - BTRY – Battery
 - BTU – Bullet Trap Universal
 - BTU – British Thermal Unit
 - BTY – Battery
 - BUA – BILL Under Armor or Built-Up Area
 - BUB – Battlefield Update Briefing
 - BW – Biological Warfare
 - BW – Black/White
 - BX – Bionix AFV
 
C
- C/G – Contractor or Government
 - C/J – Communications/Jam
 - C&L – Capabilities and Limitations
 - C2 – Command and Control
 - C2E – Continuous Comprehensive Evaluation
 - C2I – Command, Control, and Intelligence
 - C2V – Command and Control Vehicle
 - C3 – Command, Control, and Communications
 - C3I – Command, Control, Communications, and Intelligence
 - C4 – Composition C-4
 - C4I – Command Control, Communications, Computers, Intelligence
 - C4IEWS – Command, Control, Communications, Computer, Intelligence, Electronic Warfare and Sensors
 - C4ISR – Command, Control, Communications, Computer, Intelligence, Surveillance, and Reconnaissance
 - C4ISTAR – Command, Control, Communications, Computers, Intelligence, Surveillance, Target acquisition, And Reconnaissance
 - C5I – Command, Control, Communications, Computers, Collaboration and Intelligence
 - C6ISR – Command, Control, Communications, Computers, Cyber-defense, Combat systems and intelligence, Surveillance, and Reconnaissance
 - CA – Certification Authority
 - CAA – Center for Army Analysis
 - CAB – Combat Aviation Battalion 
- CAB – Combat Action Badge
 
 - CAC – Common Access Card
 - CACDA – Combined Arms Combat Development (US Army)
 - CAD – Computer-Assisted Design 
- CAD – Chemical Agent Detector
 
 - CAE – Component Acquisition Executive
 - CAG – Commander Air Group
 - CAGEC – Commercial And Government Entity Code
 - CAIV – Cost As an Independent Variable
 - CAL – Canadian Arsenals Limited 
- CAL – Caliber
 
 - CALIB – Calibration
 - CAN – Control Area Network
 - CAP – Crisis Action Planning 
- CAP – Civil Air Patrol (USAF civilian auxiliary)
 - CAP – Combat Air Patrol
 - CAP – Combustible Augmented Plasma
 - CAP – Covering Agent Program
 
 - CAR – Corrective Action Report 
- CAR – Combined Arms Rehearsal
 
 - CARRV – Challenger Armored Repair and Recovery Vehicle
 - CART – Corrective Action Review Team
 - CAS – Close Air Support
 - CASEVAC – Casualty Evacuation
 - CASTFOREM – Combined Arms Task Force Evaluation Model
 - CAT-FCS – Command Adjusted Trajectory - Fire-Control System (US)
 - CAT-LCV – Combined Arms Team - Lightweight Combat Vehicle (US)
 - CATK – Counter Attack
 - CATT – Combined Arms Tactical Trainer (UK)
 - CATT-B – Component Advanced Technology TestBed (US)
 - CAV – Cavalry 
- CAV – Composite Armored Vehicle (US)
 
 - CAWS – Cannon Artillery Weapons Systems (US)
 - CAX – Combined Arms Exercise
 - CB – Heavy Cruiser
 - CBIT – Continuous Built-In Test (BIT)
 - CBMS – Chemical Biological Mass Spectrometer
 - CPDP – Chemical, Biological Defense Program
 - CBR – Chemical, Biological, Radiological
 - CBRNE – Chemical, Biological, Radiological, Nuclear, Explosive
 - CBS – Corps Battle Simulator
 - CBT – Computer Based Training
 - CBTDEV – Combat Developer
 - CBW – Chemical and Biological Warfare
 - CC – Close Combat
 - CCAWS – Close Combat Anti-Armor Weapons Systems
 - CCB – Configuration Control Board
 - CCC – Combustible Cartridge Case
 - CCD – Charge-Coupled Device
 - CCMA – Crew-Correctable Maintenance Action
 - CCMD – Crew-Correctable Maintenance Action
 - CCIP – Constantly Computed Impact Point
 - CCO – Close Combat Optic
 - CCP – Casualty Collection Point
 - CCP – Computer Control Panel
 - CCR – Crown Copyright Reserved
 - CCTV – Closed-Circuit Television
 - CCU – Central Control Unit 
- CCU – Climate Control Unit
 
 - CCV – Close Combat Vehicle 
- CCV – Command and Control Vehicle (US)
 
 - CCV-L – Close Combat Vehicle – Light
 - cd – Candela
 - CDA – Combat Defensive Action
 - CDD – Capability Development Document
 - CDM – Coastal Defense Missile
 - CDR – Commander 
- CDR – Critical Design Review
 
 - CDRL – Contract Data Requirements List
 - CDRT – Capabilities Development for Rapid Transition
 - CDS – Configuration Data Set
 - CDU – Command Display Unit
 - CDU – Computer Display Unit
 - CE – Chemical Energy 
- CE – Continuous Evaluation
 
 - C/E – Crew/Enlisted (enlisted aircrew member)
 - CEAC – Cost and Economic Analysis Center
 - CECOM – Communications and Electronics Command
 - CED – Contingency Exercise Deployment
 - CEFO – Combat Equipment Fighting Order (webbing contents)
 - CENTCOM – Central Command
 - CENTO – Central Treaty Organization or Baghdad Pact
 - CEOI – Communications electronics operating instruction
 - CEP – Circular error probable
 - CEPSARC – Concept Experimentation Program Schedule and Review Committee
 - CERDEC – Communication and Electronics Research, Development, and Engineering Center
 - CERTEX – Certification Exercise
 - CES – Engineer Services Regiment (Sri Lanka)
 - CEPP – Controlled effect police projectile
 - CET – Combat engineer tractor
 - CEU – Computer electronics unit
 - CEV – Combat engineer vehicle
 - CF – Canadian Forces 
- CF – Controlled Fragmentation
 - CF – Controlled fragmentation
 
 - CFE – Conventional forces Europe
 - CFLCC – Coalition Forces Land Component Command
 - CFT – Cross Functional Teams
 - CFV – Cavalry Fighting Vehicle (US)
 - CG – Commanding General
 - CGS – Crew Gunnery Simulator 
- CGS – Command and General Staff
 
 - CHA – Cast Homogeneous Armor
 - CHARM – Challenger Chieftain Armament
 - CHEM – Chemical
 - CHIP – Challenger Improvement Program
 - CHS – Commander's Hand Station
 - CI – Counter-Intelligence 
- CI – Commander's Interface
 
 - CIC – Combat Information Centre
 - CIE – Clothing and Individual Equipment
 - CIFV – Composite Infantry Fighting Vehicle
 - CIG – Cannon Interface Gear
 - CILAS – Compagnie Industrielle des Lasers
 - CINC – Commander In-Chief
 - CINCAFCOM – Commander-In-Chief, African Command
 - CINCCENTCOM – Commander-In-Chief, Central Command
 - CINCAD – Commander-In-Chief, Aerospace Defense Command
 - CINCAL – Commander-In-Chief, Alaska
 - CINCCFC – Commander-In-Chief, Combined Forces Command
 - CINCEUR – Commander-In-Chief, Europe
 - CINCHAN – Commander-In-Chief, Channel (NATO)
 - CINCLANT – Commander-In-Chief, Atlantic
 - CINCLANTFLT – Commander-In-Chief, Atlantic Fleet
 - CINCMAC – Commander-In-Chief, Military Airlift Command
 - CINCNET – Commander-In-Chief, Network
 - CINCNORAD – Commander-In-Chief, North American Aerospace Defense Command
 - CINCNORTH – Commander-In-Chief, Pacific
 - CINCRED – Commander-In-Chief, Readiness Command
 - CINCSOUTH – Commander-In-Chief, Southern Command
 - CINCSTRIKE – Commander-In-Chief, Strike Command
 - CINCUNC – Commander-In-Chief, United Nations Command
 - CINCUNK – Commander-In-Chief, United Nations Force, Korea
 - CINCUSAFE – Commander-In-Chief, U.S. Air Forces, Europe
 - CINCUSAREUR – Commander-In-Chief, Army, Europe
 - CINCUSNAVEUR – Commander-In-Chief, U.S. Naval Forces, Europe
 - CIO – Chief Information Officer
 - CIP – Combat Identification Panel
 - CIPR – Concept In-Process Review
 - CIS – Chartered Industries of Singapore
 - CIS – Commonwealth of Independent States
 - CITV – Commander's Independent Thermal Viewer (US)
 - CIU – Commanders Interface Unit
 - CIWS – Close-In Weapons System
 - CIV – Civilian
 - CJCS – Chairman, Joint Chiefs of Staff
 - CJCSI – Chairman of the Joint Chiefs of Staff Instruction
 - CJCSM – Chairman of the Joint Chiefs of Staff Manual
 - CJTF – Commander, Joint Task Force
 - CKPT – Cockpit
 - CL – Light Cruiser
 - CLAMS – Clear Lane Marking System (US)
 - CLASS – Computerized Laser Sight System
 - CLAWS – Close Combat Light Armor Weapon System (US) 
- CLAWS – Container Launched Attack Weapon System
 
 - CLM-E – Continuous Learning Modules – Engineering
 - CLGP – Cannon-Launched Guided Projectile (US)
 - CLOE – Common Logistics Operating Environment
 - CLOS – Command to Line Of Sight
 - CLS – Combat Life Support 
- CLS – Contract Logistics Support
 
 - CLU – Command Launch Unit (as used in FGM-148 Javelin)
 - CM – Counter Measures
 - CMD – Command
 - CM – Color-Marking or "continue mission"
 - CMP – Configuration Management Plan
 - CMV – Combat Mobility Vehicle
 - CMS – Common Missile System 
- CMS – Compact Modular Sight
 
 - CMT – Cadmium–Mercury Telluride
 - CMV – Combat Mobility Vehicle (US)
 - CNCE – Communications Network Control Element
 - CNP – Candidate Nomination Proposals
 - CNVD – Clip-on Night Vision Device
 - COA – Course Of Action
 - COB – Close of Business
 - CO – Commanding officer
 - Co – Company
 - COA – Course of Action
 - COB – Close of Business
 - COC – Chain of Command
 - COCOM – Combatant Commander
 - COE – Chief of Engineers
 - COG – Course Over Ground
 - COI – Critical Operational Issue
 - COIC – Critical Operational Issues and Criteria
 - COIN – Counterinsurgency
 - COM/INT – Communications/Intercept
 - COMARLANT – Commander, U.S. Army Forces, Atlantic
 - COMDCAEUR – Commander, Defense Communications Agency, Europe
 - COMINT – Communications Jamming
 - COMJTF – Commander, Joint Task Force
 - COMOPTEVFOR – Commander, Operational Test and Evaluation Force
 - COMSAT – Communications Satellite
 - COMSEC- Communications Security
 - COMVAT – Combat Vehicles Armament Technology (US)
 - COMZ – Communications Zone
 - CONOPS – Concept of Operations
 - CONUS – Continental United States
 - COP – Combat Outpost
 - COS – Chief of Section
 - CoS – Chief of Staff
 - COSCOM – Corps Support Command (US Army)
 - COTAC – Conduite de Tir Automatique pour Char (tank automatic fire)
 - COTS – Commercial-Off-The-Shelf
 - COV – Counter Obstacle Vehicle (US)
 - COZ – Central Operations Zone 
- COZ – Controlled Operations Zone
 
 - CoZ – Counteroffensive Zone
 - CP – Command Post 
- CP – Concrete-Piercing
 
 - CPAWS - Charged Particle Weapon System
 - CPD – Capability Production Document
 - CPDU – Computer Power Distribution Unit
 - CPL – Corporal
 - CPO – Civilian Personnel Office
 - CPOC – Civilian Personnel Operations Center
 - CPR – Common Practice Round
 - CPS – Cardinal Points Specification (UK)
 - CPV – Command Post Vehicle
 - CPV – Commander's Panoramic Viewer
 - CPVEU – Commander's Panoramic Viewer Electronics Unit
 - CPVSA – Commander's Panoramic Viewer Sensor Assembly
 - CPX – Command Post Exercise
 - CQB – Close Quarters Battle
 - CQBR – Close-Quarters Battle Receiver
 - CR – Capability Requirement
 - CRB – Configuration Review Board 
- CRB – Capstone Requirements Document
 
 - C-RDAP – Civilian – Rotational Developmental Assignment Program
 - CRISAT – Collaborative Research into Small Arms Technology
 - CRM – Composite Risk Management (US)
 - CRMP – Computer Resource Management Plan
 - CROWS – Common Remotely Operated Weapon Station
 - CRR – Carro de Reconhecimento Sobre Rodas (reconnaissance tracking scout car)
 - CRT – Cathode Ray Tube
 - CRTC – Cold Regions Test Center
 - CRWG – Computer Resources Working Group
 - CRU – Cable Reel Unit
 - CS – Communications Subsystem 
- CS – Confined Space
 - CS – Communications Squadron (USAF)
 
 - CSA – Chief of Staff (Army)
 - CSAD – Commander's Situational Awareness Display
 - CSC – Computer Software Concept
 - CSCI – Computer Software Configuration Item
 - CSB – Combat Support Boat
 - CSE – Chargeable to Support Equipment
 - CSF – Combined Service Forces
 - CSI – computer-Synthesized Image
 - CSM – Command Sergeant Major
 - CSS – Combat Service Support 
- CSS – Computer Sighting System
 
 - CSSBL – Combat Service Support Battle Lab
 - CSSD – Combat Service Support Detachment
 - CT – Customer Test
 - CTA – Case Telescoped Ammunition
 - CTD – Concept Technology Demonstrator
 - CTC – Combat Training Center
 - CTEA – Cost and Training Effectiveness Analysis
 - CTEIP – Central Test and Evaluation Improvement Program
 - CTG – Cartridge
 - CTI – Central Tire Inflation
 - CTIS – Central Tire Inflation System
 - CTO – Central Treaty Organization or Baghdad Pact
 - CTP – Critical Technical Parameter
 - CTSF – Central Technical Support Facility
 - CTR – Close Target Recce 
- CTR – Contractor
 
 - CTRA – Carro de Transporte Sobre Rodas Anfibo (amphibious tracking scout car)
 - CTT – Challenger Training Tank
 - CUOPS – Current Operations
 - CUP – Control Unit Panel
 - CV – Commander's Vehicle 
- CV – Aircraft Carrier
 
 - CV90 – Combat Vehicle 90
 - CVAST – Combat Vehicle Armament System Technology (US)
 - CVC – Combat Vehicle Crewman's
 - CVR-T – Combat Vehicle Reconnaissance - Tracked (UK)
 - CVR-W – Combat Vehicle Reconnaissance - Wheeled (UK)
 - CVRDE – Combat Vehicle Research and Development Establishment (India)
 - CVT – Controlled Variable Time
 - CVTTS – Combat Vehicle Targeting System
 - CW – Chemical Warfare
 - CWA – Chemical Warfare Agent
 - CWBS – Contract Work Breakdown Structure
 - CWG – Communications Working Group
 - CWO – Chief Warrant Officer
 - CWR – Continuous Wave radar
 - CWS – Cupola Weapon Station
 - CY – Calendar Year
 
D
- D&O – Doctrinal and Organizational
 - DA – Department of the Army
 - DA – Double Action
 - DAA – Designated Approving Authority
 - DAB – Defense Acquisition Board
 - DAC – DEFCOM Analysis Cover
 - DAE – Defense Acquisition Executive
 - DAES – Defense Acquisition Evaluations System
 - DAG – Data Authentication Group
 - DAGR – Defense Advanced GPS Receiver
 - DAHA – Dual-Axis Head Assembly
 - DAIG – Department of the Army Inspector General
 - DA IPR – DA In-Process Review
 - DAO – Double Action Only
 - DAP – Designated Acquisition Program
 - DAP – Distant Aiming Point
 - DAPS – Dismounted Assured P(osition, Navigation, Timing,) System
 - DARCOM – US Army Matériel Development and Readiness Command
 - DAREOD – Damaged Airfield Reconnaissance Explosive Ordnance Disposal
 - DARPA – Defense Advanced Research Projects Agency (US)
 - DARPANET – DARPA Network
 - DAS – Deep Air Support
 - DAS Director of the Army Staff
 - DAS – Defensive Aids System/suite
 - DASP – Demountable Artillery Surveillance Pod
 - DATO – Denial Authority To Operate
 - DAU – Defense Acquisition University
 - DAWIA – Defense Acquisition Workforce Improvement Act
 - DB – Database
 - DB – Delayed-Blowback
 - DBBL – Dismounted Battle Battle Lab
 - DC – Data Collector
 - DC – Direct Current
 - DCA – Digital Control Assembly
 - DCA – Défense Contre Avions (anti-aircraft)
 - DCAS – Defense Contract Administration Services
 - DCB – Driver's Control Box
 - DCCT – Dismounted Close Combat Trainer
 - DCD – Directorate of Combat Developments
 - DCG – Deputy Commanding General
 - DCMA – Defense Contract Management Agency
 - DCR – DOTMLPF Change Recommendation
 - DCS – Diagnostic Control Software
 - DD – Drivers Display
 - DD – Detroit Diesel
 - DD – Destroyer
 - DDA – Detroit Diesel Allison
 - DDS – Department of Defense Support
 - DDU – Digital Display Unit
 - DE – Data Element
 - DEAD – Destruction of Enemy Air Defense
 - DECA – Digital Electronic Control Assembly
 - DEFA – direction des études et fabrications d'armement
 - DEFCON – Defense Readiness Condition
 - DEM/VAL – Demonstration and Validation (phase)
 - DEP – Deputy
 - DEPSECDEF – Deputy Secretary of Defense
 - DERA – Defence Evaluation and Research Agency (UK)
 - DESO – Defense Export Sales Organization (UK)
 - DET – Detachment
 - DEV – Developer
 - DFAC – Dining Facility (US)
 - DFCS – Digital Fire-Control System
 - DFSV – Direct Fire Support Vehicle
 - DFV – Desert Fighting Vehicle
 - DDG – Guided Missile Destroyer
 - DG – Door Gunner (Helicopter)
 - DHA – Display Head Assembly
 - DHSS – Data Handling Subsystem
 - DIA – Defense Intelligence Agency (US)
 - DIACAP – Department of Defense Information Assurance Certification and Accreditation Process
 - DIAG – Diagnostic
 - DICON – Defense Industries Corporation of Nigeria
 - DID – Data Item Description
 - DIMM – Dimmer
 - DIP – Driver Instrument Panel
 - DIPR – Detailed Test Plan in-Process Review
 - DIR – Director
 - DIS – Distributed Interactive Simulation
 - DISA – Defense Information Systems Agency
 - DISCOM – Division Support Command
 - DISNET – Defense Integrated Secure Network
 - DISUM – Daily Intelligence Summary
 - DIVARTY – Division Artillery
 - DLA – Defense Logistics Agency
 - DMC – Digital Magnetic Compass
 - DMR – Designated marksman rifle
 - DMR – Detect, Mitigate, Recover
 - DMSO – Defense Modeling and Simulation Office
 - DMU – Distance Measurement Unit
 - DN – Data Net
 - DNRS – day/night range sight
 - DoD – Department of Defense (US)
 - DODD – Department of Defense Directive
 - DODI – Department of Defense Instruction
 - DODIG – Department of Defense Inspector General
 - DOD-STD – Department of Defense Standard
 - DOE – Design of Experiments
 - DOIM – Directorate of Information Management (US Army)
 - DOP – Department of Productivity
 - DOS – Date of Separation
 - DOT&E – Director, Operational Test and Evaluation
 - DOTMLPF – Doctrine, Organization, Training, Materiel, Leadership and Education, Personnel and Facilities
 - DOTSP – Doctrinal and Organizational Test Support Package
 - DP – Data Processing
 - DP – demonstration purpose
 - DP – dual purpose
 - DPA – Defence Procurement Agency (UK)
 - DPE – Data Processing Equipment (or Element)4
 - DPEO – Deputy Program Executive Officer
 - DPG – Defense Planning Guidance
 - DPM – Deputy Program Manager
 - DPM – Deputy Project Manager
 - DPM – Deputy Product Manager
 - DPICM – Dual-Purpose Improved Conventional Munition (US)
 - DPTR – diopter
 - DPW – Directorate of Public Works
 - DQT – Development Qualification Testing
 - DR – Data Requirement
 - DR – Decision Review
 - DRA – Defence Research Agency (UK)
 - DRB – Design Review Board
 - DRI – Detection, Recognition, & Identification
 - DRM – Director of Resource Management
 - DROPS – demountable rack offloading and pick-up system
 - DROS – Date of Return Overseas (US)
 - DRP – Data Reduction Plan
 - DRT – Design Review Team
 - DS – Direct Support
 - DS/GS – Direct Support/General Support
 - DS/T – practice discarding sabot/tracer
 - DSA – Defense Supply Agency
 - DSACS – direct support armored cannon system (US)
 - DSAD – Driver's Situational Awareness Display
 - DSAU – Diagnostic Signal Acquisition Unit
 - DSETS – direct support electrical test system
 - DSM – Data Source Matrix
 - DSMC – Defense Systems Management College
 - DSN – Defense Switched Network
 - DSNET – Defense Secure Network
 - DSO – Defence Sales Organisation
 - DSRV – Deep Submergence Rescue Vehicle (US)
 - DSS – Direct Support System
 - DSSW – Defense Services Support – Washington
 - DST – Direct Support Team
 - DSWS – Division Support Weapon System
 - DT – Developmental Test
 - DT&E – Developmental Test and Evaluation
 - DTAT – Direction Technique des Armements Terrestres
 - DTC – Developmental Test Command
 - DTG – Date Time Group
 - DTIC – Defense Technical information Center
 - DTIP – Developmental Test Instrumentation Program
 - DTP – Detailed Test Plan
 - DTRR – Developmental Test Readiness Review
 - DTT – Doctrinal and Tactical Training
 - DTT – driver training tank
 - DTV – Driver's Thermal Viewer
 - DU – Display Unit / Detector Unit
 - DU – depleted uranium
 - DUA TST – Directory User Agent Tactical Support Team
 - DUSA – Deputy Under Secretary of the Army
 - DUSA-TE – Deputy Under Secretary of the Army for Test Evaluation
 - DUSD – Deputy Under Secretary of Defense
 - DUSD(ATL) – Deputy Under Secretary of Defense for Acquisition, Technology, and Logistics
 - DV – demining vehicle
 - DVC – Day Video Camera
 - DVE – driver's vision enhancer
 - DVO – Direct Vision Optics
 - DVO – Driver, Vehicle, and Operator (drop zone)
 - DWFK – deep water fording kit
 - DZ – drop zone
 
E
- EAAK – Enhanced Appliqué Armor Kit (US)
 - EAC – Enhanced Attitude Control (warthog A10)
 - EAS – End of Active Service
 - EAOS – Enhanced Artillery Observation System
 - EBG – Engin Blindé Génie (armoured combat vehicle)
 - EBR – Engin Blindé de Reconnaissance (armoured reconnaissance vehicle)
 - EBRC – Engine Blindé à roues de Contact
 - EC – Enhanced Carbine
 - ECB – Engineering and Construction Bulletins
 - ECM – Electronic countermeasures
 - ECOS – Enhanced Combat Optical Sight
 - ECS – Environmental Control Subsystem
 - ECV – Enhanced Capacity Vehicle
 - EDD – Explosive Detonation Disruption
 - EDS – Electric Drive System
 - EFAB – Etablissement d'Etudes et de Fabrications d'Armement de Bourges
 - EFC – equivalent full charge
 - EFCR – equivalent full charge rounds
 - EFM – Explosives Factory Maribyrnong
 - EFP – Expanded Feasibility Phase
 - EFP – Explosively Formed Penetrator
 - EFV – Expeditionary Fighting Vehicle (New name for AAAV)
 - EFVS – Electronic Fighting Vehicle System (US)
 - EG – External Gun
 - EGLM – Enhanced Grenade Launcher Module
 - EI – Engineering and Installation
 - EIS – Engineering and Installation Squadron
 - EI SIT – Engineering and Installation Site Implementation Team
 - ELB – Extended Life Barrel
 - ELEC – Electrical, Electric
 - ELEK – Electronic
 - ELEX – Electronics
 - ELKE – Elevated Kinetic Energy Weapon (US)
 - ELSAP – Elektronische Schiessanlage für Panzer (electronic fire system for tanks)
 - EM – electromagnetic
 - EMALS – Electromagnetic Aircraft Launcher System
 - EMC – Executive Management Committee
 - EMD – Engineering and Manufacturing Development
 - EMDG – Euromissile Dynamics Group
 - EMEW – Electromagnet Explosive Warhead
 - EMG – externally mounted gun
 - EMP – electromagnetic pulse
 - EMPG – Electromagnetic Pulse Grenade
 - ENGESA – Engesa Engenheiros Especializados (Brazil)
 - EOC – Essential Operational Capability
 - EOD – Explosive Ordnance Disposal
 - EOR – Explosive Ordnance Reconnaissance
 - EOTS – Electro-Optical Targeting System
 - EOW – End of Watch
 - EPC – Electronic plane conversion
 - EPC – Engin Principal de Combat (future main battle tank)
 - EPG – Enhanced Performance Grenade
 - EPG – European Production Group
 - EPG – European Programme Group
 - EPS – Electrical Power Subsystem
 - EPU – Electronics Processing Unit
 - ER – enhanced radiation
 - ER – extended range
 - ERA – explosive reactive armour
 - ERA – extended range ammunition
 - ERC – Engin de Reconnaissance Canon
 - ERFB – extended range full-bore
 - ERFB-BB – extended range full-bore – base bleed
 - ERGFCDS – Extended Range Gunnery Fire-Control Demonstration System
 - ERGP – extended range guided projectile
 - ERMIS – Extended Range Modification Integration System
 - ERP – Extended Range Projectile
 - ERSC – extended range subcalibre
 - ERV – emergency rescue vehicle
 - ERV – Engineer Reconnaissance Vehicle
 - ES – Extreme Spread
 - ESAF – Electronic Safety and Arm Function
 - ESD – Electronique Serge Dassault
 - ESLDE – Eyesafe Laser Daylight Elbow
 - ESPAWS – Enhanced Self-Propelled Artillery Weapon System (US)
 - ESRS – electro-slag refined steel
 - ETA – Estimated Time of Arrival
 - ETC – ElectroThermal Cannon
 - ETD – Estimated Time of Departure
 - ETE – Estimated Time of Endurance
 - ETM – Electronic Technical Manuals
 - ETS – Elevated TOW System
 - ETS – Engineer Tank System
 - ETS – End of Term of Service (discharge date) (US)
 - EW – electronic warfare
 - EWK – Eisenwerke Kaiserslautern Gцppner
 - EWS – external weapon station
 
F
- FAAD – Forward Area Air Defense
 - FAAR – AN/MPQ-49 Forward Area Alerting Radar
 - FAARP – Forward Area Arming & Refueling Point
 - FAASV – Field Artillery Ammunition Support Vehicle (US)
 - FAC – Forward Air Control(er)
 - FAC-A – Forward Air Control(er)-Airborne
 - FACE – Field Artillery Computer Equipment
 - FAL – Fusil Automatique Légère
 - FAPDS – Frangible Armour-Piercing Discarding Sabot
 - FARP – Forward Area Refueling Point
 - FARS – field artillery rocket system
 - FARV-A – Future Armored Resupply Vehicle – Artillery (US)
 - FAST – Forward Area Support Team or Future Assault Shell Technology
 - FAV – Fast Attack Vehicle (US)
 - FBI – Federal Bureau of Investigation
 - FBM – Fleet Ballistic Missile
 - FBRV – Future Beach Recovery Vehicle (UK)
 - FCC – Fire Command Centre
 - FCC – Fire-Control Computer
 - FCCVS – Future Close-Combat Vehicle System (US)
 - FCE – fire-control equipment
 - FCLV – Future Command and Liaison Vehicle (UK)
 - FCS – fire-control system/subsystem
 - FCS – Future Combat System
 - FCU – Fire Control Unit
 - FDC – fire direction centre
 - FDCV – fire direction centre vehicle
 - FDSWS – Future Direct Support Weapon System
 - FEBA – Forward Edge of the Battle Area
 - FEP – Firepower Enhancement Programme
 - FET – Future Engineer Tank
 - FFAR – Folding-Fin Aerial Rocket
 - FFE – Fire for Effect
 - FFR – Fitted For Radio
 - FFSS – Future Fighting Soldier System
 - FFW – Fitted For Wireless
 - FG – field gun
 - FH – field howitzer
 - FIBUA – Fighting In Built-Up Areas
 - FID – Foreign Internal Defense
 - FIFV – Future Infantry Fighting Vehicle (US)
 - FIRM – Floating Integrated Rail Mount
 - FIS – Fuze Interface System
 - FISH – Fighting In Someone's House (UK) (Colloquial. Slang term for FIBUA)
 - FIST – Future Integrated Soldier Technology (UK), Fire Support Team (US)
 - FISTV – Fire Support Team Vehicle (US)
 - FITOW – Further Improved TOW (US)
 - FLEA – Frangible Low-Energy Ammunition (i.e. a fragmentation grenade or a low-yield IED)
 - FLIR – forward-looking infra-red
 - FLOT – forward line of own troops
 - FLSW – Future Light Support Weapon
 - FM – U.S. Army Field Manuals
 - FM – Titanium tetrachloride (code designation)
 - FMBS – Family of Muzzle Brake/Suppressors
 - FMC – Food Machinery Corporation
 - FMF – Fleet Marine Force
 - FMJ – Full Metal Jacket
 - FMJBT – Full Metal Jacket Boat Tail
 - FMJLF – Full Metal Jacket Lead Free
 - FMN – Federated Mission Networking
 - FMPDS – Frangible Missile Piercing Discarding Sabot
 - FMS – Foreign Military Sales
 - FMTV – Family of Medium Tactical Vehicles
 - FN – Fabrique Nationale (Manufacturer)
 - FNG – Fucking New Guy
 - FO – Forward Observer
 - FOB – Forward Operating Base
 - FOC – Full Operational Capability
 - FOD – Foreign Object Damage (i.e., damage not caused by enemy fire. Includes bugs, dirt, etc.) (Aviation)
 - FOG – Fibre Optic Gyro
 - FOM – Fibre Optic Missile
 - FOO – forward observation officer
 - FORTIS – Forward Observation and Reconnaissance Thermal Imaging System
 - FOTT – Follow on to TOW
 - FOV – field of view
 - FPA – Focal Plane Array
 - FPL – Final Protective Fire
 - FRAG – fragmentation
 - FRAGO – FRAGmentary Order. (see OPORD)
 - FRED – Field ration eating device (Australia)
 - FRES – Future Rapid Effect System
 - FROG – free rocket over ground
 - FS – fire support element
 - FSAT - full scale aerial target
 - FSCL – fire support coordination line
 - FSCM – fire support coordination measure
 - FSCV – fire support combat vehicle
 - FSED – full-scale engineering development (US)
 - FSSG – Force Service Support Group
 - FST – Future Soviet Tank/Follow-on Soviet Tank
 - FSV – fire support vehicle
 - FSV – Future Scout Vehicle (US)
 - FTA – Frangible Training Ammunition
 - FTMA – Future Tank Main Armament
 - FTS – Future Tank Study
 - FTT – Field Tactical Trainer
 - FUBAR – Fouled/Fucked Up Beyond All Reason/Recognition/Repair
 - FUE – First Unit Equipped
 - FUG – Felderitц Usу Gépkosci
 - FV – fighting vehicle
 - FV/GCE – fighting vehicle gun control equipment
 - FVDD – Fighting Vehicle Development Division
 - FVRDE – Fighting Vehicle Research and Development Establishment (UK)
 - FVS – Fighting Vehicle System (US)
 - FVSC – Fighting Vehicle Systems Carrier (US)
 - FY – fiscal year
 
G
- g – gramme(s)
 - G – gendarmerie
 - GAMA – Gun automatic multiple ammunition
 - GAO – General Accounting Office
 - GAP – Gun aiming post
 - GBAD – Ground-based air defence
 - GCE – Gun control equipment
 - GCT – Grande Cadence de Tir (high rate of fire)
 - GCU – Gun control unit
 - GCW – Gross combined weight (not "gross combat weight"). Gross vehicle weight (GVW) plus gross trailer weight (GTW).
 - GD – General Dynamics
 - GDLS – General Dynamics Land Systems
 - GDU – Gun display unit
 - GFE – Government-furnished equipment
 - GH – Gun-howitzer
 - GIGN- Groupe d'intervention de la Gendarmerie Nationale ("National Gendarmerie Intervention Group")
 - GIAT – Groupement Industriel des Armements Terrestres
 - GL – Grenade launcher
 - GLATGM – Gun launched anti-tank guided missile
 - GLC – Gun lay computer
 - GLDNSM – Grenade launcher day–night sight mount
 - GLH-H – Ground-Launched Hellfire-Heavy (US)
 - GLLD – Ground Laser Locator Designator (US)
 - GLS – Gesellschaft für Logistischen Service
 - GM, MVO – General Motors, Military Vehicle Operations
 - GMC – General Motors Corporation
 - GMG – Grenade machine gun
 - GMLRS – Guided Multiple Launch Rocket System
 - GMS – Gun Management System
 - GND – Ground (electrical)
 - GOCO – government-owned, contractor-operated (US)
 - GOP – General Out Post
 - GP – General purpose
 - GP – guided projectile
 - GPMG – General-purpose machine gun
 - GPO – Gun position officer
 - GPS – Global Positioning System
 - GPS – Gunner's primary sight
 - GPSS – Gunner's primary sight subsystem
 - GR – Gajaba Regiment (Sri Lanka)
 - GREM – Grenade rifle entry munition
 - GRIT – Group, range, indication, type of fire
 - GRU – Glavnoe Razvedyvatel'noe Upravlenie, meaning main intelligence directorate
 - GSR – General staff requirement (US)
 - GSRS – General support rocket system
 - GSG9- Grenzschutzgruppe 9 der Bundespolizei (Border Protection Group 9 of the Federal Police)
 - GSOF – Georgian Special Operations Forces
 - GST – General staff target
 - GST – Gesellschaft fьr System-Technik
 - GTCS – Gun test and control system
 - GTG – Good to go
 - GTI – German tank improvement
 - GTW – Gross trailer weight
 - GVW – Gross vehicle weight: curb weight plus max payload weight.
 - GW – Gemunu Watch (Sri Lanka)
 - GW – Guided weapon
 
H
- h – hour(s)
 - H&K – Heckler and Koch
 - HAB – Heavy Assault Bridge (US)
 - HAB – Heavy Artillery Brigade (UK)
 - HAG – Heavy Artillery Gun
 - HAHO – High Altitude High Opening
 - HALO – High Altitude Low Opening, High Activity/Low Observable
 - HAMS – Headquarters and Maintenance Squadron – Marine Aircraft Group (USMC)
 - HAWK – Homing-All-the-Way-Killer (US)
 - HB – heavy barrel
 - HBAR – Heavy Barrel Assault Rifle
 - HC – Hexachloroethane/zinc
 - HC – high-capacity
 - HC – Hollow Charge
 - HCER – high-capacity extended range
 - HCHE – high-capacity high-explosive
 - HCT – HOT Compact Turret
 - HDS – HOLOgraphic Diffraction Sight
 - HE – high-explosive
 - HE-APERS – high-explosive anti-personnel
 - HE-FRAG – high-explosive fragmentation
 - HE-FRAG-FS – high-explosive fragmentation – fin-stabilised
 - HE-FS – high-explosive – fin-stabilised
 - HE-S – high-explosive spotting
 - HE-T – high-explosive tracer
 - HE/PR – high-explosive practice
 - HEAA – High-Explosive Anti-Armour
 - HEAB – High-Explosive Air Burst
 - HEAP – High-Explosive Armor-Piercing
 - HEAP-T – high-explosive anti-personnel – tracer
 - HEAT – high-explosive anti-tank
 - HEAT-FS – high-explosive anti-tank fin-stabilised
 - HEAT-MP – high-explosive anti-tank multipurpose
 - HEAT-MP(P) – high-explosive anti-tank multipurpose (practice)
 - HEAT-T – high-explosive anti-tank – tracer
 - HEAT-T-HVY – high-explosive anti-tank – tracer – heavy
 - HEAT-T-MP – high-explosive anti-tank – tracer – multipurpose
 - HEAT-TP-T – high-explosive anti-tank – target practice – tracer
 - HED-D – Hybrid Electric Drive – Demonstrator
 - HEDP – high-explosive dual-purpose
 - HEER – High-Explosive Extended Range (US)
 - HEF – high-explosive fragmentation
 - HEFT – High-Explosive Follow Through
 - HEI – high-explosive incendiary
 - HEIAP – High-explosive incendiary/armor-piercing ammunition
 - HEIT – high-explosive incendiary tracer
 - HEL – High-Energy Laser (US)
 - HEL – Human Engineering Laboratory (US)
 - HELP – Howitzer Extended Life Program (US)
 - HEMAT – Heavy Expanded Mobility Ammunition Trailer (US)
 - HEMP – High-Explosive Multi-Purpose
 - HEMTT – Heavy Expanded Mobility Tactical Truck (US)
 - HEP – high-explosive plastic
 - HEP-T – high-explosive practice – tracer
 - HEPD – high-explosive point detonating
 - HERA – high-explosive rocket-assisted
 - HESH – high-explosive squash head
 - HESH-T – high-explosive squash head – tracer
 - HET-PF – high-explosive tracer – percussion fuze
 - HETF – High Explosive Time Fuzed
 - HETS – Heavy Equipment Transport System
 - HFCC – Howitzer Fire-Control Computer (US)
 - HFHTB – Human Factors Howitzer TestBed (US)
 - HFM – Heavy Force Modernisation (US)
 - HIFV – Heavy Infantry Fighting Vehicle
 - HIMAG – High-Mobility Agility Test Vehicle (US)
 - HIMARS – High-Mobility Artillery Rocket System (US)
 - HIP – Howitzer Improvement Program (US)
 - HIRE – Hughes Infrared Equipment
 - HITP – High-Ignition Temperature Propellant
 - HIU – Heading Indicator Unit
 - HMC – Howitzer Motor Carriage
 - HMD – Helmet-Mounted Display
 - HMG – Heavy Machine Gun
 - HMH – Marine Heavy Helicopter Squadron
 - HMLC – High-Mobility Load Carrier
 - HML/A – Marine Light/Attack Helicopter Squadron
 - HMM – Marine Medium Helicopter Squadron
 - HMMWV – High Mobility Multipurpose Wheeled Vehicle
 - HMX – Marine Special Mission Helicopter Squadron
 - HOE – Holographic Optical Element
 - HOT – Haute subsonique Optiquement Téléguidé
 - How – Howitzer
 - HP – High Power; Hollow Point
 - hp – Horsepower
 - HPFP – High-Performance Fragmentation Projectile
 - HPS – Helmet Pointing System (or Sight)
 - HPT – high-pressure test
 - HRST – Helicopter Rope Suspension Technique
 - HRU – Heading Reference Unit
 - HS – Headquarters Squadron – Marine Wing Support Group (USMC)
 - HSS – Hunter Sensor Suite
 - HSTV(L) – High-Survivability Test Vehicle (Lightweight) (US)
 - HTTB – High-Technology TestBed (US)
 - HUD – Head-up display
 - HVAP – high-velocity armour-piercing
 - HVAP-T – high-velocity armour-piercing tracer
 - HVAPDS – high-velocity armour-piercing discarding sabot
 - HVAPDS-T – high-velocity armour-piercing discarding sabot – tracer
 - HVAPFSDS – high-velocity armour-piercing fin-stabilised discarding sabot
 - HVCC – High Velocity Canister Cartridge
 - HVM – Hypervelocity Missile
 - HVSS – horizontal volute spring suspension
 - HVSW – Hypervelocity Support Weapon
 - HVTP-T – high-velocity target practice – tracer
 - HWSTD – High Water Speed Technology Demonstrator
 - HYPAK – Hydraulic Power Assist Kit
 
I
- I – Incendiary
 - IAF – Indian Air Force
 - IAFV – infantry armoured fighting vehicle
 - IAI – Israel Aircraft Industries
 - IAL – Infrared Aiming Light
 - IASD – Instant Ammunition Selection Device
 - IBAS – Improved Bradley Acquisition System
 - ICBM – Intercontinental ballistic missile
 - ICC – information co-ordination centre
 - ICM – Improved Conventional Munition
 - ICM – BB improved conventional munition base bleed
 - ICV – Infantry Combat Vehicle
 - IDF – Israel Defense Forces
 - IDF – Indirect fire
 - IDW – Individual Defence Weapon
 - IED – Improvised Explosive Device
 - IEPG – Independent European Program Group
 - IFCS – Improved/Integrated Fire-Control System
 - IFF – Identification Friend or Foe
 - IFV – infantry fighting vehicle
 - IFVwCM – Infantry Fighting Vehicle with Integrated Countermeasures (US)
 - IGLS – Individual Grenade Launcher System
 - II – image intensification/intensifier
 - IIR – Imaging Infra-Red
 - ILL – illuminating
 - ILMS – Improved Launcher Mechanical System
 - ILS – Integrated Logistic Support
 - IM – Insensitive Munition(s)
 - IMMLC – Improved Medium Mobility Load Carrier
 - IMSC – International Maritime Security Construct
 - IMU – Inertial Measurement Unit
 - INSAS – Indian Small Arms System
 - InSb – Indium-antimonide
 - INS -Indian Naval ship
 - IOC – initial operational capability
 - IOF – Indian Ordnance Factory
 - IPB – Intelligence Preparation of the Battlefield
 - IPF – Initial Production Facility
 - IPO – International Programme Office
 - IPPD – Integrated Product Process Development
 - IR – Infra-Red
 - IRBM – Intermediate-range ballistic missile
 - IRU – Inertial Reference Unit
 - IS – internal security
 - ISD – In Service Date
 - ISGU – Integrated Sight and Guidance Unit
 - ISR – Intelligence Surveillance and Reconnaissance
 - ISU – Integrated Sight Unit
 - ISV – Internal Security Vehicle
 - ITAS – Improved Target Acquisition System
 - ITOW – Improved TOW
 - ITPIAL – Infra-red Target Pointer/Illuminator/Aiming Laser
 - ITT – Invitation To Tender
 - ITV – Improved TOW Vehicle (US)
 - IVPDL – Inter-Vehicle Positioning and Data Link (US)
 - IWAT Insurgency Weapons And Tactics
 - IW – Individual Weapon
 - IWS – Improved Weapon System
 
J
- JASDF – Japan Air Self-Defense Force
 - JBMoU – Joint Ballistic Memorandum of Understanding
 - JDAM – Joint Direct Attack Munition
 - JERRV – Joint Engineer Rapid Response Vehicle
 - JGSDF – Japan Ground Self-Defense Force
 - JHP – Jacketed hollow point
 - JMAC – Joint Medium-calibre Automatic Cannon
 - JMSDF – Japan Maritime Self-Defense Force
 - JOIR – Joint Operations Information Range
 - JPO – Joint Project Office
 - JSC – Joint Steering Committee
 - JSCS – Joint Service Combat Shotgun
 - JSDF – Japan Self-Defense Force
 - JSOC – Joint Special Operations Command
 - JSP – Jacketed Soft Point
 - JSSAMP – Joint Services Small Arms Master Plan
 - JSSAP – Joint Service Small Arms Program
 - JTIDS – Joint Tactical Information Distribution System
 
K
- KAAV – Korean Armoured Amphibious Vehicle
 - KAC – Knight's Armament Company
 - KE – Kinetic energy
 - KEC – Kaman Electromagnetics Corporation
 - KEM – Kinetic Energy Missile (US)
 - kg – kilogramme(s)
 - KHA – Killed Hostile Action (US Vietnam War)
 - KIA – Killed in Action
 - KIFV – Korean Infantry Fighting Vehicle
 - KNHA – Killed Non-Hostile Action (US Vietnam War)
 - KPA – Korean People's Army
 
L
- LAAG – light anti-aircraft gun
 - LAAM – Light Anti-Aircraft Missile
 - LCAC – Landing Craft Air Cushion
 - LAD – light aid detachment
 - LADS – light air defense system (US)
 - LAG – Light Artillery Gun
 - LALO – Low Altitude Low Opening
 - LAM – Laser Aiming Module
 - LAP – Load-Assemble-Pack (LAP) munitions production
 - LAPES – Low-Altitude Parachute Extraction System
 - LAR – Light Automatic Rifle
 - LASER – Light Amplification by Stimulated Emission of Radiation
 - LASIP – Light Artillery System Improvement Plan
 - LATS – Light Armoured Turret System
 - LAU – Light Armoured Unit
 - LAV – Light Armored Vehicle (US)
 - LAV – Light Assault Vehicle (US)
 - LAV-AD – Light Armored Vehicle – Air Defense
 - LAW – Light Anti-tank Weapon
 - LB – Long Barrel
 - LC – Laser Collimator
 - LCD – Liquid crystal display
 - LCS – Loader Control System
 - LCU – Landing Craft Utility
 - LCV – Light Contingency Vehicle (LCV) (US)
 - LD – Low drag, Line of Departure
 - LE – Law Enforcement
 - LED – light emitting diode
 - LEP – Life Extension Programme
 - LEU – Launcher Erector Unit
 - LF – ATGW Light Forces' Anti-Tank Guided Weapon
 - LF – Linked Feed
 - LFA – Low Flying Area
 - LFHG – Lightweight Fragmentation Hand Grenade
 - LFL – Light Fighter Lethality
 - LIA – Linear Induction Accelerator
 - LIC – Low Intensity Conflict
 - LIMAWS – Lightweight Mobile Artillery Weapon System
 - LION – Lightweight Infra-red Observation Night sight
 - LIW – Lyttleton Engineering Works
 - LKP – Loader Keyboard Panel
 - LLAD – low-level air defence
 - LLLTV – low light level television
 - LLM – Launcher Loader Module
 - LMAW – Light Multi-purpose Assault Weapon
 - LMG – Light Machine Gun
 - LNS – Land Navigation System
 - LNS – Laying and Navigation System
 - L/O – Liaison Officer
 - LOAL – Lock-On After Launch
 - LOBL – Lock-On Before Launch
 - LOC – Line Of Communication
 - LOLEX – Low-altitude parachute-extraction system
 - LOS – Line Of Sight
 - LOSAT – Line Of Sight Anti-Tank
 - LOSBR – Line Of Sight Beam Riding
 - LP – Liquid Propellant
 - LP – Listening Post
 - LPC – Launch Pod Container
 - LPC – Launcher Pod Carrier
 - LPG – Liquid Propellant Gun
 - LPO – Leading Petty Officer
 - LPT – Low-Profile Turret
 - LPTS – Lightweight Protected Turret System
 - LR – Long Rifle
 - LR – Long-Range
 - LRAR – Long Range Artillery Rocket
 - LRASS – Long-Range Advanced Scout System
 - LRAT – long-range anti-tank
 - LRBB – long-range base bleed
 - LRD – Long Range Deflagrator
 - LRF – laser rangefinder
 - LRF – Low Recoil Force
 - LRHB – long-range hollow base
 - LRIP – Low-Rate Initial Production
 - LRM – Laser Rangefinder Module
 - LRN – Lead Round Nose
 - LRN – Low Recoil NORICUM
 - LRRP – Long Range Reconnaissance Patrol
 - LRSA – Long Range Sniper Ammunition
 - LRSU – Long Range Surveillance Unit
 - LRU – Launcher Replenishment Unit
 - LRU – Line Replacement Unit
 - LRU – Line-Replaceable Unit
 - LSAT- Lightweight Small Arms Technologies
 - LSB – Landing Support Battalion
 - LSO – Landing signal officer
 - LSS – Lightweight Shotgun System
 - LST – Landing Ship, Tank
 - LSVW – Light Support Vehicle, Wheeled (Canada)
 - LSW – Light Support Weapon
 - LTA – Launch Tube Assembly
 - LTD – Laser Target Designator
 - LTFCS – Laser Tank Fire-Control System
 - LTP – Laser Target Pointer, Luminesant Training Projectile
 - LUTE – Lightweight Uncooled Thermal Imager Equipment
 - LVA – landing vehicle assault (US)
 - LVS – Lightweight Video Sight
 - LVT – Landing Vehicle Tracked (US)
 - LVTC – Landing Vehicle Tracked Command (US)
 - LVTE – Landing Vehicle Tracked Engineer (US)
 - LVTH – Landing Vehicle Tracked Howitzer (US)
 - LVTP – Landing Vehicle Tracked Personnel (US)
 - LVTR – Landing Vehicle Tracked Recovery (US)
 - LWC – Lead Wad Cutter
 - LWIR – Long Wave Infrared
 - LWL – LightWeight Launcher
 - LWML – LightWeight Multiple Launcher
 - LWMMG – LightWeight Medium Machine Gun
 - LWMS – LightWeight Modular Sight
 - LWS – laser warning system
 - LWT – light weapon turret
 - LZ – landing zone
 - LRW – Light Repair Works (Indian Army)
 
M
- m – metre(s)
 - m/s – metres per second
 - MAB – Marine Amphibious Brigade
 - MABS – Marine Air Base Squadron
 - MAC – Medium Armored Car (US)
 - MAC – Military Airlift Command
 - MACS – Modular Artillery Charge System
 - MACS – Marine Air Control Squadron
 - MADLS – Mobile Air Defence Launching System
 - MAF – Marine Amphibious Force
 - MAG – Marine Aircraft Group
 - MAGTEC – Marine Air/Ground Training & Education Command
 - MAGTF – Marine Air/Ground Task Force
 - MAHEM – Magnetohydrodynamic Explosive Munition
 - MALOS – Miniature Laser Optical Sight
 - MALS – Marine Air Logistics Squadron
 - MAMBA – Mobile Artillery Monitoring Battlefield Radar
 - MANPADS – Man Portable Air Defense System
 - MAOV – Mobile Artillery Observation Vehicle
 - MAP – Military Aid Programme
 - MAPS – Modular Azimuth Position System
 - MAR – Micro Assault Rifle
 - MARDI – Mobile Advanced Robotics Defence Initiative (UK)
 - MARDIV – Marine Division (US)
 - MARS – Military Amateur Radio Station
 - MARS – Mini Assault Rifle System
 - MARS – Multi-purpose Aiming Reflex Sight
 - MARS – Multiple Artillery Rocket System
 - MASS – Marine Air Support Squadron
 - MATCS – Marine Air Traffic Control Squadron
 - MATSG – Marine Air Training Support Group
 - MAU(SOC) – Marine Amphibious Unit (Special Operations Capable)
 - MAV – maintenance assist vehicle
 - MAVD – MLRS Aim Verification Device
 - MAW – Marine Air Wing (US)
 - MBA – main battle area
 - MBB – Messerschmitt-Bцlkow-Blohm
 - MBC – Mortar Ballistic Computer
 - MBF – Multiple-barrel firearm
 - MBT – main battle tank
 - MCISRE – Marine Corps Intelligence, Surveillance, and Reconnaissance Enterprise
 - MCLOS – Manual Command to Line Of Sight
 - MCRV – Mechanised Combat Repair Vehicle
 - MCS – Microclimate Conditioning System
 - MCS – modular charge system
 - MCSK – Mine Clearance System Kit (US)
 - MCT – Medium Combat Tractor (US)
 - MCT – Mercury Cadmium Telluride
 - MCV – Mechanised Combat Vehicle
 - MCWL – Marine Corps Warfighting Laboratory
 - MCWS – Minor Caliber Weapons Station (US)
 - MDB – Multi Domain Battle
 - MDMP – Military Decision Making Process
 - MDU – Map Display Unit
 - MEB – Marine Expeditionary Brigade
 - MEDEVAC – Medical Evacuation
 - MEF – Marine Expeditionary Force
 - MENS – Mission Element Need Statement (US)
 - MEP – Modular Explosive Penetrator
 - MEPS – Military Entrance Processing Station
 - METO – Middle East Treaty Organisation; CENTO or Baghdad Pact
 - METL – Mission Essential Task List
 - METT-TC – Mission, Enemy, Terrain and weather, Troops and support available—Time available, Civilians
 - METT-TSL – Mission, Enemy, Terrain and weather, Troops and fire support available – Time available, Space, Logistics
 - MEU – Marine Expeditionary Unit
 - MEU(SOC) – Marine Expeditionary Unit (Special Operations Capable)
 - MEV – medical evacuation vehicle (US)
 - MEWS – Mobile Electronic Warfare System
 - MEWSS – Mobile Electronic Warfare Support System
 - MF – multifunction
 - MFC – Mortar Fire Control(ler)
 - MFCS – Multi-Fire Control System/Mortar Fore Control System
 - MFCV – Missile Fire-Control Vehicle
 - MFF – munition filling factory
 - MG – machine gun
 - MGB – Medium Girder Bridge
 - MGL – Multiple Grenade Launcher
 - MGS – Mobile Gun System
 - MGTS – MultiGun Turret System
 - MGU – Mid-course Guidance Unit
 - MI – Military Intelligence
 - MIA – Missing In Action
 - MICOM – Missile Command (US)
 - MICV – Mechanised Infantry Combat Vehicle
 - MILAN – Missile d'Infantrie Léger Antichar (light infantry anti-tank missile)
 - MILDEC – Military deception
 - MILES – Multiple Integrated Laser Engagement System (US)
 - MILSPEC – Military Specification
 - MILSTD – MILitary STANdard
 - MILSTAR – MILitary Strategic and Tactical Relay (US)
 - MIPS – Medium Integrated Propulsion System (US)
 - MIR – Mechanized Infantry Regiment (Sri Lanka)
 - MIRV – Multiple independently targetable reentry vehicle
 - MLA – Manufacturing Licence Agreement
 - MLC – Military Load Class
 - MLC – Modular Load Carrier
 - MLF – Marine Logistics Force
 - MLR – Marine Littoral Regiment
 - MLI – Mid-Life Improvement
 - MLO – Muzzle Loaded Ordnance
 - MLRS – Multiple Launch Rocket System (US)
 - mm – millimetre(s)
 - MMBF – mean miles between failures
 - MMG – Medium Machine Gun
 - MMS – mast-mounted sight
 - MMS – Modular Mounting System
 - MNVD – Monocular night vision device
 - MoA – Memorandum of Agreement
 - MOA – Minute Of Angle
 - MoD – Ministry of defence
 - MODA – Ministry of Defence and Aviation
 - MOLF – Modular Laser Fire Control (Germany)
 - MOLLE – Modular lightweight load-carrying equipment
 - MOPP – Mission Oriented Protective Posture (US)
 - MOS – Military occupational specialty (US)
 - MoU – Memorandum of Understanding
 - MOUT – Military Operations in Urban Terrain (urban warfare) (US)
 - MP – Machine Pistol
 - MP – Military police
 - MPBAV – MultiPurpose Base Armoured Vehicle
 - MPC – MultiPurpose Carrier (Netherlands)
 - MPDS – Missile Piercing Discarding Sabot
 - MPGS – Mobile Protected Gun System (US)
 - MPI – Mean Point of Impact
 - MPIM – MultiPurpose Individual Munition
 - MPM – MultiPurpose Munition
 - MPS – Maritime Prepositioning Ships (US)
 - MPV – Multi-Purpose Vehicle
 - MPWS – Mobile Protected Weapon System (US)
 - MR – Medium Range
 - MRAP – Mine Resistant Ambush Protected (Vehicle)
 - MRAR – MultiRole Assault Round
 - MRAV – MultiRole Armoured Vehicle
 - MRBF – mean rounds before failure
 - MRBS – mean rounds between stoppages
 - MRE – Meal Ready to Eat
 - MRS – multiple rocket system
 - MRS – muzzle reference system
 - MRSI – Multiple Round Simultaneous Impact
 - MRV(R) – Mechanised Recovery Vehicle (Repair)
 - MRVR – Mechanised Repair and Recovery Vehicle (US)
 - MSSG – MAU/MEU Service Support Group (USMC)
 - MSL – Missile
 - MSLEX – Missile exercise
 - MSR – Missile Simulation Round
 - MSR – Main supply route
 - MSTAR – Man-portable Surveillance and Target Acquisition Radar
 - MSV – Modular Support Vehicle
 - MT – mechanical time
 - MTB – Mobility TestBed
 - MTBF – Mean Time Between Failure
 - MTI – moving target indication
 - MTL – Materials Technology Laboratory (US)
 - MTR – Mobile Test Rig (US)
 - MTSQ – mechanical time and super-quick
 - MTSQ – Mechanical Time Semi-Quick
 - MTU – Motoren- und Turbinen-Union
 - MTVL – mobile tactical vehicle light
 - MUGS – Multipurpose Universal Gunner Sight
 - MULE – Modular Universal Laser Equipment (US)
 - MUSS – Multifunctional Selfprotection System
 - MV – muzzle velocity
 - MVEE – Military Vehicles and Engineering Establishment (UK)
 - MVRS – Muzzle Velocity Radar System
 - MWCS – Marine Wing Communications Squadron
 - MWHS – Marine Wing Headquarters Squadron
 - MWS – Manned Weapon Station (US)
 - MWS – Modular Weapon System
 - MWSG – Marine Wing Support Group
 - MWSS – Marine Wing Support Squadron
 
N
- NAS – Naval Air Station
 - NATO – North Atlantic Treaty Organization
 - NAVSEA – Naval Sea Systems Command
 - NBC – Nuclear, biological, chemical
 - NBMR – NATO basic military requirement
 - NCIS – Naval Criminal Investigative Service (US)
 - NCO – Non-commissioned officer (US, E-4 – E-9)
 - NCOIC – Non-Commissioned Officer in Charge
 - NDI – Non-developmental item
 - NDU – Navigation display unit
 - NFOV – Narrow field of view
 - NG – New/next generation
 - Ni/Cd – Nickel–cadmium
 - NLAW – Next lightweight anti-armour weapon
 - NLOS-C – Non-line-of-sight cannon
 - NLOS-M – Non-line-of-sight mortar
 - NOD(s) – Night observation device(s)
 - NOE – Nap-of-the-earth
 - NOTAM – Notice to airmen
 - NPAWS - Neutral particle weapon system
 - NRF – NATO Response Force
 - NS – Network services
 - NTC – National Training Center (USA)
 - NUGP – nominal unit ground pressure
 - NV – Night Vision
 - NVD – Night vision device
 - NVE – Night vision equipment
 - NVESD – Night Vision and Electronic Sensors Directorate
 - NVG – Night vision goggle
 - NVS – Night vision system
 - NZDF – New Zealand Defence Force
 - NZEF – New Zealand Expeditionary Force (in WWI & WWII)
 - NZSAS – New Zealand Special Air Service
 
O
- OBR – Optical Beam-Riding
 - OCC – Obus à Charge Creusé (shaped-charge shell)
 - OCOKA – Observation and fields of fire, Cover and concealment, Obstacles, Key terrain, and Avenues of Approach.
 - OCSW – Objective Crew-Served Weapon
 - OCU – Operational Centre Unit
 - ODE – Ordnance Development and Engineering (Singapore)
 - OEG – Occluded Eye Gunsight (a type of Collimator sight)
 - OEO – optical and electro-optical
 - OFSA – Objective Family of Small Arms
 - OFSA – One Size Fits All
 - OFW – Objective Force Warrior
 - OHWS – Offensive Hand Weapon System
 - OIC – Officer In Charge
 - OICW – Objective Individual Combat Weapon
 - OLF – Operational Low Flying
 - OOTW – Operations Other Than War
 - OP – Observation post
 - OP – Operators Panel
 - OPCON – OPerational CONtrol
 - OPDW – Objective Personal Defense Weapon
 - OPFOR – OPposing FORces
 - OPORD – OPerations Order
 - OPSEC – OPerational SECurity
 - OPV – Observation Post Vehicle
 - OSW – Objective Sniper Weapon
 - OSC – Operation Strategy Command
 - OSS (USAF) – Operational Support Squadron
 - OSW (USAF) – Operational Support, Weather
 - OT – operational test
 - OTA – overflight top attack
 - OTEA – Operational Test and Evaluation Agency (US)
 
P
- P – How pack howitzer
 - P-38 — P-38 can opener (US)
 - P3I – Pre-Planned Product Improvements
 - PAR – pulse acquisition radar
 - PARA – Parachute Regiment
 - PARAMIL – Paramilitary
 - PAT – power-assisted traverse
 - PAWPERSO – Protection, Ammunition, Weapon, Personal Equipment, Radio, Specialist Equipment, Orders[1]
 - PC – Personal Computer
 - PCB – printed circuit board
 - PCC – Police Compact Carbine
 - PCI – Pre-combat inspection
 - PD – Point Defense
 - PD – point detonating
 - PD – Point of Departure
 - PDNA – Positioning Determining/Navigation Unit
 - PDRR – Program Definition and Risk Reduction
 - PDW – Personal Defence Weapon
 - PE – MoD Procurement Executive (UK)
 - PE – Peace Enforcement (US DoD)
 - PEC – Printed Electronic Circuits
 - PENAID – Penetration aid
 - PFD – proximity fuze disconnector
 - PFHE – prefragmented high-explosive
 - PLF – protective line of fire
 - PFPX – prefragmented proximity fuzed
 - PGMM – Precision Guided Mortar Munition
 - PH – Probability of Hit
 - Pi – Probability of incapacitation
 - PIAT – Projector, Infantry, Anti Tank
 - PIBD – Point Initiating Base Detonated
 - PID – Positive Identification
 - PIE – pyrotechnically initiated explosive
 - PIP – Product Improvement Programme
 - PL – Phase Line
 - PLA – People's Liberation Army
 - PLAAF – People's Liberation Army Air Force
 - PLAGF – People's Liberation Army Ground Force
 - PLAN – People's Liberation Army Navy
 - PLANAF – People's Liberation Army Naval Air Force
 - PLANMC – People's Liberation Army Navy Marine Corps
 - PLARF – People's Liberation Army Rocket Force
 - PLARS – Position Location And Reporting System (US)
 - PLASSF – People's Liberation Army Strategic Support Force
 - PLC – Programmable Logic Control
 - PLOS – Predicted Line Of Sight
 - PLS – Palletized Load System (US)
 - PM – porte mortier (mortar carrier)
 - PM – Product Manager
 - PMCS – Preventative Maintenance Checks and Services
 - PMEE – Prime Mission Electronic Equipment (USAF)
 - PMO – Program Management Office (US)
 - PMO – Provost Marshall's Office
 - PMOD – Platform Modifications
 - PMS – Pedestal-Mounted Stinger
 - PNU – Position Navigation Unit
 - PM WIN-T – Project Manager Warfighter Information Network-Tactical
 - POA&M – Plan Of Action & Milestones
 - POF – Pakistan Ordnance Factory
 - POG – Person other than Grunt
 - POS – Postes Optiques de Surveillance
 - POW – Prisoner of War
 - PPG – PT Parade Games (Bangladesh Cadet Colleges)
 - PPI – plan position indicator
 - PPS – Precise Positioning Service
 - PPV – Protected Patrol Vehicle
 - PRAC – practice
 - PRAC-T – practice tracer
 - PRESAR – Preparation, React to enemy fire, Establish enemy position, Suppress the enemy, Assault, Reorg[2]
 - PRI – projector reticle image
 - PRP – Personnel Reliability Program (screening and monitoring of individuals with access to "special" weapons)
 - PSBC – Platoon Sergeant's Battle Course
 - PSD – Propulsion System Demonstrator
 - PSO – Peace Support Operations
 - PSS – Primary Sight System
 - PTI – Physical Training Instructor
 - PTO – power take-off
 - PVP – Petit Véhicule Protégé
 - PW – Prisoner of War
 - PWI-SR(GR) – Panser Wagen Infanterie-Standaard (Groep)
 - PWP – Plasticised White Phosphorus
 - PWR – Power
 
Q
- QCB – Quick Change Barrel
 - QE – Quadrant Elevation
 - QRF – Quick Reaction Force
 - QTOL – Quiet Take Off And Landing
 
R
- RA – Royal Artillery
 - RAA – Royal Australian Artillery
 - RAAM – Rifle-launched Anti-Armour Munition
 - RAAMS – Remote Anti-Armor Mine System (US)
 - PABD – Pay Entry Base Date
 - RAC – Royal Armoured Corps
 - RADIRS – Rapid Deployment Multiple Rocket System (US)
 - RAAF – Royal Australian Air Force
 - RAE – Royal Aircraft Establishment, Royal Aircraft Establishment (Farnborough)
 - RAE – Royal Australian Engineers, Australian Combat Engineers
 - RAF – Royal Air Force
 - RAM-D – reliability, availability, maintainability and durability
 - RAN – Royal Australian Navy
 - RAO – Rear Area Operations
 - RAP – Regimental Aid Post[3]
 - RAP – rocket-assisted projectile
 - RAPI – Reactive Armour Protection
 - RARDE – Royal Armament Research and Development Establishment (UK)
 - RATAC – Radar de Tir pour L'Artillerie de Campagne (radar for field artillery fire)
 - RATELO – Radio Telephone Operator
 - RAW – Rifleman's Assault Weapon
 - RBL – Range and Bearing Launch
 - RBOC – Rapid Bloom Offboard Chaff
 - RC/MAS – Reserve Component/Modified Armament System
 - RCAAS – Remote-Controlled Anti-Armor System (US)
 - RCAF – Royal Canadian Air Force
 - RCC – ROLAND Coordination Center (US)
 - RCWS – Remote-Controlled Weapon Station
 - RCL – Recoilless rifle
 - RCN – Royal Canadian Navy
 - RCS – Radar Cross Section
 - RCT – Regimental Combat Team
 - RCT – Royal Corps of Transport
 - RCV – Robotic Command Vehicle
 - RDF – Rapid Deployment Forces
 - RDF/LT – Rapid Deployment Force Light Tank (US)
 - RDJTF – Rapid Deployment Joint Task Force (US)
 - RDT&E – Research Development Test and Evaluation
 - REME – Royal Electrical and Mechanical Engineers
 - REMF – Rear Echelon Mother Fucker
 - RF – Rimfire
 - RFA – Royal Field Artillery or Royal Fleet Auxiliary
 - RFAS – Russian Federation and Associated States
 - RFC – Royal Flying Corps
 - RFI – request for information
 - RFP – request for proposals
 - RFPI – Rapid Force Projection Initiative
 - RFQ – Request For Quotations
 - RGGS – Rifle Grenade General Service
 - RHA – rolled homogeneous armour
 - RHA – Royal Horse Artillery
 - RIN – the former Royal Indian Navy
 - RIO – Radar Intercept Officer
 - RIS – Rail Interface System
 - RISE – Reliability Improved Selected Equipment
 - RISTA – Reconnaissance, Intelligence, Surveillance and Target Acquisition
 - RLC – Royal Logistic Corps
 - RLEM – Rifle-Launched Entry Munition
 - RLG – Ring Laser Gyro
 - RLT – Regimental Landing Team
 - RMG – ranging machine gun
 - RN – Royal Navy
 - RNZAF – Royal New Zealand Air Force
 - RNZN – Royal New Zealand Navy
 - RO – Royal Ordnance
 - ROBAT – Robotic Counter-Obstacle Vehicle (US)
 - RoC – Republic of China
 - ROC – required operational characteristics
 - ROE – Rules Of Engagement
 - ROF – Royal Ordnance Factory (UK)
 - ROF – Rate of fire
 - RoK – Republic of Korea
 - RoKMC – Republic of Korea Marine Corps
 - RoKIT – Republic of Korea Indigenous Tank
 - ROR – range only radar
 - ROTA – Royal Ordnance Training Ammunition
 - RP – Red phosphorus
 - RP – rocket-propelled
 - RP – Regimental police
 - RPC – Rocket Pod Container
 - RPG – Rocket-propelled grenade
 - RPG – Ruchnoy Protivotankovy Granatomyot
 - RPV – Remotely piloted vehicle
 - RR – Recoilless rifle
 - RRPR – Reduced Range Practice Rocket
 - RRT – Radio Recon Team
 - RRTR – Reduced Range Training Round
 - RSAF – Royal Small Arms Factory (UK) (now closed)
 - RSN – Role Specialist Nation (US & NATO)
 - RSS – Rosette Scanning Seeker
 - RTE – Rifle Team Equipment
 - RTO – Radio/Telephone Operator
 - RTOL – Reduced Take Off and Landing
 - RTT – Roues Transporteur de Troupes
 - RUC – Royal Ulster Constabulary
 - RUF – Rules on the Use of Force
 - RV – Rendezvous/Rendezvous point
 - RWS – Remote weapon system (or station)
 - RWR – Radar Warning Receiver
 
S
- s – second(s)
 - S&W – Smith & Wesson
 - SA – Situation Awareness
 - SABCA – Société Anonyme Belge de Constructions Aéronautiques
 - SABR – Selectable Assault Battle Rifle
 - SABS – Stabilizing Automatic Bomb Sight
 - SAC – Small Arms Collimator
 - SACLOS – Semi-Automatic Command to Line Of Sight
 - SADA – Standard Advanced Dewar Assembly
 - SADARM – Sense And Destroy Armor (US)
 - SADF – South African Defence Force
 - SADM – Special Atomic Demolition Munition
 - SAE – Society of Automotive Engineers
 - SAF – Small Arms Fire
 - SAFCS – Small Arms Fire Control System
 - SAFIRE – Surface-to-Air Fire
 - SAL – semi-active laser
 - SAL – search and locate
 - SAM – surface-to-air missile
 - SAMM – Société d'Applications des Machines Motrices
 - SANDF – South African National Defence Force
 - SANG – Saudi Arabian National Guard
 - SAP – Semi-Armour-Piercing
 - SAPHEI – Semi-Armour-Piercing High Explosive Incendiary
 - SAPI – semi-armour-piercing incendiary or Small Arms Protective Insert
 - SAR – Search and Rescue
 - SAS – Special Air Service
 - SASR – Special Air Service Regiment
 - SAS-EAS – Sealed Authenticator System – Emergency Action Procedures (Nuclear Weapons Release Control)
 - SASR – Special Application Sniper Rifle
 - SAT – Small Arms Trainer
 - SATCP – Système Anti-aérien à Très Courte Portée (very short-range anti-aircraft system)
 - SAVA – Standard Army Vectronics Architecture
 - SAW – Squad Automatic Weapon
 - SAWS – Squad Automatic Weapon System
 - SB – Short Barrel
 - SCORE – Stratified Charge Omnivorous Rotary Engine
 - SCC – Sea Cadet corps
 - SCI – Sensitive compartmented information
 - SD – self-destruct(ion)
 - SEAD – Suppression of Enemy Air Defenses
 - SEAL – Sea/Air/Land
 - SEALOCK – Search, Locate, and Communicate or Kill
 - SEATO – Southeast Asia Treaty Organisation
 - SECFOR – Security forces
 - SECGUARD – Security guard
 - SEME – School of Electrical and Mechanical Engineering
 - SEN – shell extended range NORICUM
 - SEP – Soldier Enhancement Programme
 - SF – Special Forces (US/UK)
 - SFCS – Simplified Fire-Control System
 - SFIM – Société de Fabrication d'Instrument de Mesure
 - SFIRR – solid fuel integral rocket/ramjet
 - SFM – Sensor Fuzed Munitions
 - SFMG – Sustained Fire Machine Gun
 - SFSW – Special Forces Support Weapon
 - SFW – Special Forces Weapon
 - SGTS – Second-Generation Tank Sight
 - SHAPE – Supreme Headquarters Allied Powers Europe
 - SH/PRAC – squash head practice
 - SHORAD – Short-Range Air Defence System
 - shp – shaft horsepower
 - SIC – Second in Command
 - SICPS – Standard Integrated Command Post Systems
 - SINCGARS – Single Channel Ground/Air Radio System
 - SIP – System Improvement Plan/Programme
 - SIPS – Small Integrated Propulsion System
 - SITREP – Situation Report
 - SJFN – Semi-Jacketed Flat Nose
 - SJHP – Semi-Jacketed Hollow Point
 - SKOT – Sredni Kolowy Opancerzny Transporter (armoured personnel carrier)
 - SLA – Sri Lanka Army
 - SLAC – Sri Lanka Armoured Corps
 - SLAF – Sri Lanka Air Force
 - SLAGSE – Sri Lanka Army General Service Corps
 - SLAOC – Sri Lanka Army Ordnance Corps
 - SLAP – saboted light armor penetrator
 - SLAPC – Sri Lanka Army Pioneer Corps
 - SLASC – Sri Lanka Army Service Corps
 - SLAW – Shoulder-Launched Assault Weapon
 - SLAWC – Sri Lanka Army Women's Corps
 - SLCG – Sri Lanka Coast Guard
 - SLCMP – Sri Lanka Corps of Military Police
 - SLE – Sri Lanka Engineers
 - SLEME – Sri Lanka Electrical and Mechanical Engineers
 - SLEP – Service Life Extension Program (US)
 - SLLI – Sri Lanka Light Infantry
 - SLMC – Sri Lanka Army Medical Corps
 - SLNG – Sri Lanka National Guard
 - SLN – Sri Lanka Navy
 - SLR – Self-Loading Rifle
 - SLRC – Sri Lanka Rifle Corps
 - SLSR – Sri Lanka Sinha Regiment
 - SLWAGL – Super Light Weight Automatic Grenade Launcher
 - SM – smoke
 - SMAW – Shoulder-launched Multi-purpose Assault Weapon
 - SMG – sub-machine gun
 - SMK – Smoke
 - SMP – Surface Mine Plough
 - SMU – Special Mission Unit
 - SNAFU – Situation Normal, All Fouled Up
 - SNCO – Staff Non-Commissioned Officer (USMC, E-6 – E-9)
 - SNCOIC – Staff Non-Commissioned Officer In Charge (USMC)
 - SOCOM – Special Operations Command
 - SOF – Special Operations Forces
 - SOG – Speed Over Ground
 - SOP – Standing/Standard Operating Procedure(s)
 - SOS – Struck Off Strength
 - SOZ – Special Operations Zone 
- SOZ – Strategic Operations Zone
 
 - SP – Shore Patrol 
- SP – self-propelled
 - SP – Soft Point
 
 - SPAAG – self-propelled anti-aircraft gun
 - SPAAM – self-propelled anti-aircraft missile
 - SPAG – self-propelled assault gun
 - SPARK – solid propellant advanced ramjet kinetic energy missile
 - SPAS – Special Purpose Automatic Shotgun, like SPAS-12 or SPAS-15
 - SPATG – self-propelled anti-tank gun
 - SPAW – self-propelled artillery weapon
 - SPEAR – Small Precision Enhanced Aiming Rangefinder
 - SPG – self-propelled gun
 - SPH – self-propelled howitzer
 - SPIE – Special Patrol Insertion/Extraction
 - SPL – self-propelled launcher
 - SPLL – Self-propelled Loader Launcher
 - SPLY – Supply
 - SPM – self-propelled mortar
 - SPP – Special Purpose Pistol
 - SPR – Special Purpose Rifle
 - SPS – Standard Positioning Service
 - SPSM – Sensorgezundete Panzerabwehr SubMunition
 - SPW – Special Purpose Weapon
 - SR – Short Rifle 
- SR – Sniper Rifle
 - SR – Staff Requirement
 - SR – Special Reconnaissance
 
 - SRR – Special Reconnaissance Regiment
 - SRAW – Short Range Assault Weapon
 - SRC – Space Research Corporation
 - SRG – shell replenishment gear
 - SRI – Short Range Insert
 - SRTS – Short Range Thermal Sight
 - SRU – Shop Replaceable Unit
 - SRU – Slip Ring Unit
 - SRV – Surrogate Research Vehicle (US)
 - SS – Submarine
 - SSA – Special Spaced Armour
 - SSE – Sensitive Site Exploitation
 - SSG – Single Shot Gun
 - SSK – Single Shot Kill
 - SSR – Sniper Support Rifle 
- SSR – Special Support and Reconnaissance Company (DNK)
 
 - SSW – Squad Support Weapon
 - ST6 – Seal Team Six
 - ST – Staff Target
 - STA – shell transfer arm
 - STAB – Steered Agile Beams
 - STAFF – Small Target Activated Fire-and-Forget (US)
 - STANAG – STANdardisation Agreement
 - STARTLE – Surveillance and Target Acquisition Radar for Tank Location and Engagement (US)
 - STE/ICE – Simplified Test Equipment/Internal Combustion Engine (US)
 - STF – Special Task Force
 - STORM – Small Tactical Optical Rifle-Mounted
 - STOVL – Short Take Off and Vertical Landing
 - STUP – spinning tubular projectile
 - SUB – SUBstitute
 - SUC – Square Ultra Compact
 - SUIT – Sight Unit Infantry Trilux
 - SUSAT – Sight Unit Small Arms Trilux
 - SWARM – Stabilised Weapon and Reconnaissance Mount
 - SWAT – Special Weapons And Tactics
 - SWC – Semi WadCutter
 - SWS – Sniper Weapon System
 
T
- T – Tracer
 - TAAR – Tactical Air to Air Refueling
 - TACBE – Tactical beacon
 - TACMS – Army Tactical Missile System (US)
 - TACOM – Tank-automotive and Armaments Command (US)
 - TACP – Tactical Air Control Party
 - TAD – Temporary Additional Duty (Naval Services term) Temporary Duty
 - TADDS – Target Alert Display Data Set (US)
 - TADS – Target Acquisition and Designation System (US)
 - TAM – Tanque Argentino Mediano
 - TAS – Target Acquisition Subsystem
 - TAS – tracking adjunct system
 - TAS – Turret Attitude Sensor
 - TBAT – TOW/Bushmaster Armored Turret (US)
 - TC – Tank Commander, also Truck Commander (US Army)
 - TCO – Tactical Combat Operations
 - TCTO – Time-Compliance Technical Order
 - TCU – tactical control unit
 - TD – Tank Destroyer
 - TDCS – Tank Driver Command System
 - TDD – Target Detection Device
 - TDR – Target Data Receiver
 - TDY – Temporary Duty
 - TE – Tangent Elevation
 - TEL – Transporter-Erector-Launcher
 - TELAR – Transporter-Erector-Launcher And Radar
 - TES – Tactical Environment Simulation
 - TES – target engagement system
 - TESS – Telescopic Sighting System
 - TGMTS – Tank Gunnery Missile Tracking System
 - TGP – Terminally Guided Projectile
 - TGP – Targeting pod
 - TGS – Tank Gun Sight
 - TGSM – terminally guided submunition
 - TGTS – tank gunnery training simulator
 - TI – thermal imaging/imager
 - TIC – Troops In Contact
 - TICM – thermal imaging common modules
 - TID – Tactical Information Display
 - TIIPS – Thermal Imaging and Integrated Position System
 - TIM – Thermal Imaging Module
 - TIPU – Thermal Image Processing Units
 - TIRE – Tank Infra-Red Elbow
 - TIS – thermal imaging system
 - TISEO – Target Identification System Electro-Optical
 - TLC – Transport Launching Container
 - TLD – Top Level Demonstrations
 - TLE – Treaty Limited Equipment
 - TLP – Troop Leading Procedures (US)
 - TLR – Tank Laser Rangefinder
 - TLS – Tank Laser Sight
 - TM&LS – Textron Marine & Land Systems
 - TMBC – Turret Management Ballistic Computer
 - TMP – Tactical Machine Pistol
 - TMS – Turret Modernisation System
 - TMUAS – Turreted Mortar Under Armor System (US)
 - TNI – Tentara Nasional Indonesia
 - TNT – Trinitrotoluene
 - TO – Technical Order
 - TOE – Table of organisation and equipment
 - TOGS – Thermal Observation and Gunnery System (UK)
 - TOP – Total Obscuring Power
 - TOPAS – Transporter Obrneny Pasovy
 - TOTE – Tracker, Optical Thermally Enhanced
 - TOW – Tube-launched, Optically tracked, Wire command link guided (US)
 - TP – Target Practice
 - TP-FL – target practice flash
 - TP-S – or TPS Target Practice-Spotting/Signature
 - TP-SM – target practice – smoke
 - TP-SP – target practice – spotting
 - TP-T – target practice – tracer
 - TPCM – Target Practice Colour-Marking
 - TPDS – Target Practice Discarding Sabot
 - TPFSDS-T – target practice fin-stabilised discarding sabot – tracer
 - TPTF – Target Practice Time Fuzed
 - TR – Triple Rail
 - TRACER – Tactical Reconnaissance Armoured Combat Equipment Requirement (UK)
 - TRACKSTAR – Tracked Search and Target Acquisition Radar System (US)
 - TRADOC – Training and Doctrine Command (US)
 - TSFCS – Tank Simplified Fire-Control System
 - TSQ – time and super-quick
 - TSR – Tavor Sporting Rifle
 - TT – transport de troupes (troop transporter)
 - TTA – Tactical Training Area
 - TTB – Tank TestBed (US)
 - TTD – Transformation Technology Demonstrator
 - TTG – Time To Go
 - TTS – Tank Thermal Sight
 - TU – Terminal Unit
 - TU – Traversing Unit
 - TUA – TOW Under Armor (US)
 - TUR – Tiefflieger-Ьberwachungs-Radar (low-level surveillance radar)
 - TV – Television
 - TWD – Thermal Warning Device
 - TWMP – Track Width Mine Plough
 - TWS – Thermal Weapon Sight
 - TYDP – Ten Year Defence Programme (Australia)
 
U
- UAV – Unmanned Aerial Vehicle
 - UBLE – Universal Bridge Launching Equipment
 - UCVP – Universal Combat Vehicle Platform
 - UDR – Ulster Defence Regiment
 - UET – Universal Engineer Tractor (US)
 - UGV – Unmanned Ground Vehicle
 - ULC – Unit Load Container
 - UMA – Universal Mounting Adapter
 - UMP – Universal Machine Pistol
 - USA – United States of America/United States Army
 - USAADS – U.S. Army Air Defense School
 - USAARMS – U.S. Army Armor School
 - USAAVNS – U.S. Army Aviation School
 - USAAF – United States Army Air Forces
 - USAF – United States Air Force
 - USCG – United States Coast Guard
 - USMC – United States Marine Corps
 - USN – United States Navy
 - USP – Universal Self-loading Pistol
 - UTL – Universal Tactical Light
 - UTM – Universal Transverse Mercator
 - UTS – Universal Turret System
 - UV – Ultraviolet
 - UW – Urban warfare
 
V
- V – Volt(s)
 - VAB – Véhicule de l'Avant Blindé (front armoured car)
 - VAB – Vickers Armoured Bridgelayer
 - VADS – Vulcan Air Defense System (US)
 - VAE – Vehiculo Armado Exploracion
 - VAK – Vehicle Adaptor Kit
 - VAPE – Vehiculo Apoyo y Exploracion
 - VARRV – Vickers Armoured Repair and Recovery Vehicle
 - VARV – Vickers Armoured Recovery Vehicle
 - VBC – Véhicule Blindé de Combat (armoured combat vehicle)
 - VBCI – Véhicule Blindé de Combat d'Infanterie
 - VBIED – Vehicle-Borne Improvised Explosive Device
 - VBL – Véhicule Blindé Léger (light armoured vehicle)
 - VBM – Véhicules Blindés Modulaires
 - VBSS – Visit Board Search Seizure
 - VC – Vehicle Commander
 - VCA – Véhicule Chenillé d'Accompagnement (tracked support vehicle)
 - VCC – Veicolo Corazzato de Combattimento
 - VCG – Véhicule de Combat du Genie (armoured engineer vehicle)
 - VCI – Véhicule de Combat d'Infanterie; Vehiculo combate infanteria (infantry combat vehicle)
 - VCP – Vehicle Check Point
 - VCR – variable compression ratio
 - VCR – Véhicule de Combat à Roues (wheeled combat vehicle)
 - VCR/AT – Véhicule de Combat à Roues/Atelier Technique (salvage)
 - VCR/IS – Véhicule de Combat à Roues/Intervention Sanitaire (stretchers)
 - VCR/PC – Véhicule de Combat à Roues/Poste de Commandement (HQ)
 - VCR/TH – Véhicule de Combat à Roues/Tourelle HOT (turret with four HOT ATGW)
 - VCR/TT – Véhicule de Combat à Roues/Transport de Troupes (troop carrier)
 - VCTIS – Vehicle Command and Tactical Information System
 - VCTM – Vehiculo de Combate Transporte de Mortero (armoured mortar carrier)
 - VCTP – Vehiculo de Combate Transporte de Personal (armoured personnel carrier)
 - VDA – Véhicule de Défense Anti-aérienne (anti-aircraft defence vehicle)
 - VDAA – Véhicule d'Auto-Défense Anti-aérienne
 - VDC – Voltage Direct Current
 - VDM – viscous damped mount
 - VDSL – Vickers Defence Systems Ltd
 - VDU – visual display unit
 - VEC – Vehiculo de Exploraciòn de Caballerie
 - VEDES – Vehicle Exhaust Dust Ejection System (US)
 - VERDI – Vehicle Electronics Research Defence Initiative (UK)
 - VHIS – visual hit indicator system
 - VIB – Véhicule d'Intervention du Base
 - VIDS – Vehicle Integrated Defence System
 - VINACS – Vehicle Integrated Navigation and Command System
 - VIRSS – Visual and InfraRed Smoke Screening System
 - VITS – Video Image Tracking Systems
 - VLAP – Velocity-enhanced Long-range Artillery Projectile
 - VLC – Véhicule Léger de Combat (light armoured car)
 - VLI – Visible Light Illuminator
 - VLSMS – Vehicle-Launched Scatterable Mine System
 - VMA – Marine Light Attack Squadron
 - VMA(AW) – Marine All-Weather Attack Squadron
 - VMBT – Vickers Main Battle Tank
 - VMF – Marine Fighter Squadron
 - VMFA – Marine Fighter Attack Squadron
 - VMFA(AW) – Marine All-Weather Fighter Attack Squadron
 - VMGR – Marine Aerial Refueler/Transport Squadron
 - VMFP – Marine Aerial Reconnaissance Squadron
 - VMM – Marine Tilt-rotor (MV-22B) Squadron
 - VMU – Marine Unmanned Aerial Vehicle Squadron
 - VMR – Marine Transport Squadron
 - VMAQ – Marine Electronic Warfare Attack Squadron
 - VMS – Vehicle Motion Sensor
 - VNAS – Vehicle Navigation Air System
 - VRL – Véhicule Reconnaissance Léger (light reconnaissance vehicle)
 - VSEL – Vickers Shipbuilding and Engineering Ltd
 - VT – variable time (fuse)
 - VTOL – Vertical Take-Off and Landing aircraft
 - VTP – véhicule transport de personnel (personnel carrier)
 - VTT – véhicule transport de troupe (troop transporter)
 - VVSS – vertical volute spring suspension
 - VXB – Véhicule Blindé à Vocations Multiples (multipurpose armoured car)
 
W
- WAAC – Women's Auxiliary Army Corps and individual members of; obsolete
 - WAC – Women's Army Corps and individual members of; obsolete
 - WAF – Women (in the) Air Force and individual members of; obsolete
 - WAM – Wide Area Mines (US)
 - WAMI – Wide Area Motion Imagery (US)
 - WAPC – Wheeled Armoured Personnel Carrier (Canada)
 - WASAD – Wide Angle Surveillance and Automatic Detection Device
 - WAV – Wide Angle Viewing
 - WAVES – Women Accepted for Volunteer Emergency Service (USN); obsolete
 - WES – Wing Engineer Squadron (USMC)
 - WFOV – Wide Field of View
 - WFSV – Wheeled Fire Support Vehicle (Canada)
 - WHA – Wounded Hostile Action (US Vietnam War)
 - WHA – Weapons Head Assembly
 - WHSA – Weapons Head Support Assembly
 - WLR – Weapon Locating Radar
 - WM – Woman/Women Marine(s)
 - WMD – Weapon(s) of Mass Destruction
 - WMRV – Wheeled Maintenance and Recovery Vehicle (Canada)
 - WNHA – Wounded Non-Hostile Action (US Vietnam War)
 - WP – white phosphorus
 - WP-T – white phosphorus – tracer
 - WSM – Winchester Short Magnum
 - WTS – Wing Transportation Squadron (USMC)
 
X
- XO – Executive Officer
 
Y
- YMRS – Yugoslav multiple rocket system
 
Z
See also
- List of established military terms
 - List of military tactics
 - Glossary of firearms terminology
 - List of aviation, avionics, aerospace and aeronautical abbreviations
 - Military Abbreviations www.marx-mil.com by Stefan Marx
 
References
- ^ "The Section Attack". 11 August 2014.
 - ^ "Fieldcraft".
 - ^ Australian War Memorial. "Glossary". p. R. Retrieved 21 June 2013.
 
External links
- Armor and Artillery Glossary
 - Infantry Weapons Glossary
 - FM 17-97 Cavalry Troop (October 1995)
 - FM 5-19 (formerly FM 100–14) Composite Risk Management (21 Aug 2006)
 - Ministry of Defence acronyms and abbreviations
 - Military abbreviations and Dictionaries
 - Military acronyms and military abbreviations