- Located 0.9 miles (1.4 km) NW of Amanty, Meuse[2]
  - French, then American Air Service training and operational airfield [1] 
- I Corps Observation Group School[1]
  - Headquarters, I Corps Observation Group, 2 February-3 May 1918
  - Headquarters, 1st Day Bombardment Group, 10–25 September 1918
  - 1st Aero Squadron (training), 19 October 1917 – 4 April 1918
  - 91st Aero Squadron (training), 14 December 1917 – 24 May 1918
  - 88th Aero Squadron (training), 1 February – 28 May 1918
  - 12th Aero Squadron (training, then observation), 2 February – 3 May 1918
  - 90th Aero Squadron (training), 19 April – 13 June 1918
  - 99th Aero Squadron (Observation School), 31 May – 1 July 1918
  - 135th Aero Squadron (training), 19–30 July 1918
  - 8th Aero Squadron (training), 31 July – 31 August 1918
  - 50th Aero Squadron (training), 27 July – 4 September 1918
  - 104th Aero Squadron (training), 1–4 August 1918
  - 9th Aero Squadron (Night Army Observation) 28 August – 21 September 1918
  - 96th Aero Squadron (Day Bombardment), 18 May – 23 September 1918
  - 20th Aero Squadron (Day Bombardment), 7–23 September 1918
  - 11th Aero Squadron (Day Bombardment), 6–24 September 1918
  - 166th Aero Squadron (Day Bombardment), 21–25 September 1918
 
     - Located 1.9 miles (3.1 km) SSW of Autreville, Vosges[2]
  - RAF operational, then American Air Service training and operational airfield[1] 
- 168th Aero Squadron (training) 2 Sept 1918 - 5 Oct 1918
  - 186th Aero Squadron (training), 18 Sept 1918 – 29 Oct 1918
  - 354th Aero Squadron (training, then Corps Observation), 30 Sept 1918 – 25 Oct 1918
  - 278th Aero Squadron (Corps Observation), 1 Oct 1918 – 10 Nov 1918
 
     - Unknown exact location, Badonvilliers, Meurthe-et-Moselle
  - Built by 477th Aero Sqn (Construct.) 1–22 August 1918
  - Apparently never used
    - Located 1 mile (1.6 km) SSW of Belrain, Meuse[2]
  - French, then American Air Service airfield[1] 
- Headquarters, 2d Pursuit Group, 23 September – 11 December 1918
  - 13th Aero Squadron (Pursuit) 23 September – 6 November 1918
  - 49th Aero Squadron (Pursuit) 23 September – 6 November 1918
  - 139th Aero Squadron (Pursuit) 24 September – 7 November 1918
  - 22d Aero Squadron (Pursuit) 22 September – 7 November 1918
  - 104th Aero Squadron (Corps Observation) 30 November 1918 – 14 January 1919
  - 99th Aero Squadron (Corps Observation)  31 November – 13 December 1918
  - 90th Aero Squadron (Corps Observation) 15 – 18 January 1918
 
     - Located 0.1 miles (0.16 km) WNW of Béthelainville, Meuse[2]
  - French and American Air Service airfield[1]
  - Headquarters, III Corps Observation Group, 29 October – 11 November 1918 
- 90th Aero Squadron (Corps Observation) 19 October – 15 January 1919
  - 88th Aero Squadron (Corps Observation) 4–29 November 1918
 
     - Undetermined location near Bicqueley, Meurthe-et-Moselle
  - French and American Air Service operational airfield[1] 
- 50th Aero Squadron (Corps Observation) 8–24 September 1918
 
     - Located 2.5 miles (4.0 km) ESE of Fismes, Marne
  - French 6th Army Air Service airfield from January 1917 (previously 5th Army) 
- 103d Aero Squadron (Pursuit), 10 April – 2 May 1918
 
     - Located 1.3 miles (2.1 km) E of Chailly-en-Brie, Seine et Marne[2]
  - French and American Air Service airfield[1]
  - Headquarters, I Corps Observation Group, 12–22 August 1918 
- 1st Aero Squadron (Corps Observation) 13–22 August 1918
  - 12th Aero Squadron (Corps Observation) 12–22 August 1918
 
     - Located 3.9 miles (6.3 km) ESE of Chaumont, Haute-Marne[2]
  - Headquarters, Second Army Observation Group, 25 Oct 1918 - 4 Nov 1918[1]
  - Headquarters, 1st Pursuit Wing, 24 Sept 1918 – 11 Nov 1918[1]
  - Air Service HQ and operational airfield[1] 
- 91st Aero Squadron (ground training) 15 Nov 1917 – 14 Dec 1917[1]
  - 12th Aero Squadron (ground training) 16 Jan 1918 – 2 Feb 1918
  - 85th Aero Squadron (Observation, Second Army), 30 Sept 1918 – 4 Nov 1918[1]
  - 99th Aero Squadron (General Duties) 13 Dec 1918 – 19 Feb 1919
 
     - Located 1.0 mile (1.6 km) W of Coincy, Aisne[2]
  - French and American Air Service airfield[1] 
- 94th Aero Squadron (Pursuit, advanced airfield) August 1918
 
   - Headquarters, I Corps Observation Group, 10–12 August 1918 
- 1st Aero Squadron (Corps Observation) 10–13 August 1918
  - 12th Aero Squadron (Corps Observation) 10–12 August 1918
 
     - Located 1.3 miles (2.1 km) NE of Toul, Meurthe et Moselle[2]
  - French and American Air Service airfield[1]
  - Headquarters, 1st Pursuit Wing, 6 July 1918 – c. 24 September 1918
  - Headquarters, 1st Pursuit Group, 5 May 1918 – 28 June 1918
  - Headquarters, 2d Pursuit Group, 29 June 1918 – 23 September 1918
  - Headquarters, 4th Pursuit Group, 26 October 1918 – 15 April 1919
  - Headquarters, I Corps Observation Group, 22 August 1918 – 19 September 1918
  - 1st Pursuit Organization and Training Center, then 1st Pursuit Group from 5 May (First Army) 
- 94th Aero Squadron (Pursuit), 7 April 1918 – 29 June 1918
  - 95th Aero Squadron (Pursuit), 4 May 1918 – 28 June 1918
  - 27th Aero Squadron (Pursuit), 1 – 26 June 1918
  - 147th Aero Squadron (Pursuit), 1 – 28 June 1918
 
   - 2nd Pursuit Group (First Army, part of the 1st Pursuit Wing from 6 July) 
- 13th Aero Squadron (Pursuit), 28 June 1918 – 23 September 1918
  - 139th Aero Squadron (Pursuit) 30 June 1918 – 24 September 1918
  - 103d Aero Squadron (Pursuit), 4 July 1918 – 7 August 1918
  - 49th Aero Squadron (Pursuit), 2 August 1918 – 23 September 1918
  - 22d Aero Squadron (Pursuit), 16 August 1918 – 22 September 1918
 
   - 28th Aero Squadron (3rd Pursuit Group, First Army) 15–16 July 1918 (transfer from Orly to Vaucouleurs).
  - I Corps Observation Group (First Army) 
- 1st Aero Squadron (Observ.), 22 August 1918 – 21 September 1918
  - 12th Aero Squadron (Observ.), 22 August 1918 – 20 September 1918
 
   - IV Corps Observation Group (First Army, then Second Army from 14 October - HQ in Remicourt then Julvécourt) 
- 8th Aero Squadron (Observ.), 29 September 1918 – 23 October 1918
  - 135th Aero Squadron (Observ.), 30 Sept 1918 – 21 November 1918
  - 168th Aero Squadron (Observ.), 5 October 1918 – 21 November 1918
  - 85th Aero Squadron (Observ.), 10–24 November 1918
 
   - 4th Pursuit Group 
- 822nd Aero Squadron, then 6th Air Park Oct 1918 - April 1919
 
   - 141st Aero Squadron (Pursuit), 19 October 1918 – 19 April 1919
  - 25th Aero Squadron (Pursuit), 24 October 1918 – 15 April 1919
  - 17th Aero Squadron (Pursuit), 4 November 1918 – 12 December 1918
  - 148th Aero Squadron (Pursuit), 4 November 1918 – 11 December 1918
 
   - 278th Aero Squadron (VII Corps Obs. Group/First Army, 14 Nov to Second Army) 14 November 1918 - 15 April 1919[1]
    - Located 0.8 miles (1.3 km) NE of Deouze, Meuse[2]
  - American Air Service airfield[1] 
- 166th Aero Squadron (Day Bomb.), 26 August – 1 September 1918; 7–12 September 1918
  - 11th Aero Squadron (Day Bomb.), 26 August – 6 September 1918
  - 20th Aero Squadron (Day Bomb.), 26 August – 7 September 1918
  - 100th Aero Squadron (Day Bomb.), 26 August – 26 October 1918
  - 163d Aero Squadron (Day Bomb.), 30 September – 1 November 1918
 
     - Located 0.9 miles (1.4 km) W of Epiez-sur-Meuse, Meuse[2]
  - American, then French Air Service airfield[1] 
- 27th Aero Squadron (Pursuit, training) 24 April – 1 June 1918
  - 94th Aero Squadron (Pursuit, training) 1–7 April 1918
  - 95th Aero Squadron (Pursuit, training) 1 April – 4 May 1918
  - 147th Aero Squadron (Pursuit, training) 22 April – 1 June 1918
  - 104th Aero Squadron (Observation, on transit) 4–8 August 1918
 
     - Undetermined location near Flin, SE of Chenevières OTAN/USAFE airfield, Meurthe-et-Moselle
  - American Air Service airfield[1]
  - Headquarters, I Corps Observation Group, 13 – 29 June 1918[1] 
- 12th Aero Squadron (Observation) 13 – 29 June 1918
 
     - Located 1.0 mile (1.6 km) ESE of Foucaucourt, Meuse[2]
  - French and American Air Service airfield[1]
  - Headquarters, V Corps Observation Group, 20 Sept 1918 – 4 Feb 1919 
- 99th Aero Squadron (Observation),  20 Sept – 4 Nov 1918
  - 104th Aero Squadron (Observation), 20 Sept – 4 Nov 1918
 
   - Headquarters, 3d Pursuit Group, 6 Nov 1918 – 31 Dec 1918 
- 28th Aero Squadron (Pursuit), 6 November 1918 – 15 February 1919[4]
  - 93d Aero Squadron (Pursuit), 6 November – 15 December 1918
  - 103d Aero Squadron (Pursuit), 6 November 1918 – 5 January 1919
  - 213th Aero Squadron (Pursuit), 6 November – 29 January 1919[1]
 
     - Located 1.9 miles (3.1 km) N of Mouroux, Seine et Marne[2]
  - French and American Air Service airfield[1]
  - Headquarters, I Corps Observation Group, 6–30 July 1918 
- 1st Aero Squadron (Observation) 6–22 July 1918
  - 12th Aero Squadron (Observation) 6–22 July 1918
  - 88th Aero Squadron (Observation) 7 July-4 August 1918
 
     - Located 0.7 miles (1.1 km) S of Gondreville, Meurthe et Moselle[2]
  - American, then French (after Armistice) Air Service airfield[1]
  - Headquarters, 1st Army Observation Group, 6–22 September 1918 
- 91st Aero Squadron (Observation) 24 May – 21 September 1918[1]
  - 24th Aero Squadron, (Observation) 22 August – 22 September 1918
 
     - Located on the SW side of Goussancourt, Aisne.
  - French Air Service airfield[1] 
- 88th Aero Squadron (Observation) 4–9 September 1918
 
     - Located 4.3 miles (6.9 km) ESE of Château-Thierry, Picardy[2]
  - French Air Service airfield[1] 
- 88th Aero Squadron (Obs) 4 Aug – 4 Sept 1918; 9 – 12 Sept 1918
 
     - Located 0.4 miles (0.64 km) W of Julvécourt, Lorraine
  - French then American Air Service airfield.
  - Headquarters, I Corps Observation Group, 5 November 1918 – 15 April 1919 
- 1st Aero Squadron (Observation) 5–21 November 1918
  - 12th Aero Squadron (Observation) 3–21 November 1918
 
         |    - Located 1.6 miles (2.6 km) SE of Mourmelon le Grand, Marne
  - French Air Service airfield. 
- 103d Aero Squadron (Pursuit), 18 February – 10 April 1918
 
     - Located 0.7 miles (1.1 km) WNW of Lay-Saint-Remy, Lorraine
  - American Air Service airfield.
  - Headquarters 5th Pursuit Group 15 Nov 1918 – 15 April 1919 
- 41st Aero Squadron (Pursuit)  15 Nov 1918 – 15 April 1919
  - 138th Aero Squadron (Pursuit), 5 Nov 1918 – 15 April 1919
  - 638th Aero Squadron (Pursuit), 14 Nov 1918 – 15 April 1919
 
     - Located 0.6 miles (0.97 km) N of Lemmes, Meuse
  - French Air Service airfield. 
- 186th Aero Squadron, (Observation) 7–24 November 1918
 
     - Located 1.0 mile (1.6 km) N of Lisle-en-Barrois, Meuse.[5]
  - French then American Air Service airfield.
  - Headquarters, 3d Pursuit Group, 20 September – 6 November 1918 
- 28th Aero Squadron (Pursuit), 20 September – 6 November 1918
  - 93d Aero Squadron (Pursuit), 21 September – 5 November 1918
  - 103d Aero Squadron (Pursuit), 20 September – 6 November 1918
  - 213th Aero Squadron (Pursuit), 20 September – 5 November 1918[1]
 
     - Five former German wartime airfields used by American Aero Squadrons before entering Germany in December 1918
  - Noërs Aerodrome located 1 mile (1.6 km) SW of Longuyon. 
- 94th Aero Squadron (observation) 20 Nov - 31 Dec 1918
 
   - Joppécourt Aerodrome 10 miles (16 km) SE of Longuyon. 
- 166th Aero Squadron (observation) 21 Nov - 5 Dec 1918
 
   - Mercy le Bas located 8 miles (13 km) SE of Longuyon. 
- 1st Aero Squadron (observation) 21 Nov - 6 Dec 1918
 
   - Mercy le Haut located 11 miles (18 km) SE of Longuyon 
- 462nd Aero Squadron (Construct.) 20 Nov - 2 Dec 1918
  - IV Corps Observation Group HQ 21 Nov - 4 Dec 1918
  - 12th Aero Squadron (observation) 21 Nov - 6 Dec 1918
 
   - Preutin Aerodrome located 10 miles (16 km) SE of Longuyon 
- 9th Aero Squadron (comm. duties) 21 Nov - 5 Dec 1918
  - 91st Aero Squadron (observation) 21 Nov - 2 Dec 1918
 
     - Located 1.7 miles (2.7 km) SSW of Luxeuil-les-Bains, Franche-Comté
  - French (from 1916) and American Air Services airfield.
  - V Corps Infantry Liaison School 
- 99th Aero Squadron (Observation)  1 July – 7 September 1918 
- Flight operated from Corcieux Aerodrome, 19–24 July 1918
  - Flight operated from Dogneville Aerodrome, 24 July – 26 August 1918
 
  
   - Headquarters, V Corps Observation Group, formation 1 – 7 Sept 1918
  - 104th Aero Squadron (Observation for V Corps[6]) 8 Aug – 8 Sept 1918
  - Now: Luxeuil Air Base (BA 116)
    - Located south of Thiaucourt, near Toul, it is only a possible airfield, where 85th Aero Squadron stayed 4–10 November 1918.[7]
    - Located 2.5 miles (4.0 km) SSW of Maulan, Lorraine.[8]
  - (French) and American Air Services airfield.
  - Headquarters, 1st Day Bombardment Group, 25 Sept – 17 Jan 1919 
- 11th Aero Squadron (Day Bomb.), 24 Sept 1918 – 17 Jan 1919
  - 20th Aero Squadron (Day Bomb.), 23 Sept 1918 – 16 Jan 1919
  - 96th Aero Squadron (Day Bomb.), 23 Sept 1918 – 10 Jan 1919
  - 166th Aero Squadron (Day Bomb.), 25 Sept – 22 Nov 1918
 
     - Located 0.5 miles (0.80 km) south of May-en-Multien, Île-de-France, along the D 405, towards Meaux.
  - French and American Air Services airfield.
  - Headquarters, I Corps Observation Group, 5–10 August 1918[1] 
- 1st Aero Squadron 5–10 August 1918
  - 12th Aero Squadron (Observation) 3–10 August 1918
 
     - Located 2 miles (3.2 km) E of La Ferté-sous-Jouarre, Île-de-France
  - French and (temporary) American Air Services airfield.
  - Headquarters, I Corps Observation Group, 30 July - 5 August 1918 
- 1st Aero Squadron (Observation) 22 July – 5 August 1918
  - 12th Aero Squadron (Observation) 22 July – 3 August 1918
 
     - Located 0.7 miles (1.1 km) WNW of Ourches-sur-Meuse, Lorraine
  - American Air Services airfield.
  - Headquarters, I Corps Observation Group, 1 April – 29 June 1918 
- 1st Aero Squadron (Observation) 4 April – 29 June 1918
  - 12th Aero Squadron (Observation) 3 May – 13 June 1918
  - 88th Aero Squadron (Observation) 28 May – 7 July 1918
 
   - Headquarters, IV Corps Observation Group, 1 July – 29 September 1918 
- 90th Aero Squadron (Observation) 13 June – 20 September 1918
  - 135th Aero Squadron (Observation) 30 July – 30 September 1918
  - 24th Aero Squadron, (Observation) 6–22 August 1918
  - 8th Aero Squadron (Observation), 31 August – 29 September 1918[1]
 
   - Headquarters, 2d Day Bombardment Group, 1–11 November 1918 
- 100th Aero Squadron (Day Bombardment), 30 Oct – 11 Nov 1918[1]
  - 163d Aero Squadron (Day Bombardment), 1–11 Nov 1918[1]
 
     - Undetermined location near Aubréville, Lorraine
  - American Air Services airfield. 
- 50th Aero Squadron (Observation)  28 Oct - 6 Nov 1918
 
   - Headquarters, V Corps Observation Group, 4–11 November 1918 
- 99th Aero Squadron (Observation)  4–31 November 1918
  - 104th Aero Squadron (Observation) 4–30 November 1918
 
     - Undetermined location near Pretz-en-Argonne, Lorraine
  - French and American Air Services airfield. 
- 88th Aero Squadron (Observation) 14–20 September 1918
 
     - Located 1.6 miles (2.6 km) ENE of Rembercourt aux Pots, now part of Rembercourt-Sommaisne, Lorraine
  - French then American Air Services airfield.
  - Headquarters, 1st Pursuit Group, 1 September – 11 November 1918 
- 27th Aero Squadron (Pursuit) 3 September – 12 December 1918
  - 94th Aero Squadron (Pursuit) 1 September – 20 November 1918
  - 95th Aero Squadron (Pursuit) 2 September – 11 December 1918
  - Flight Operated from: Verdun Aerodrome, 7 Nov 1918 – unknown
  - 147th Aero Squadron (Pursuit) 1 September – 12 December 1918 
- Flight operated from: Verdun Aerodrome, 25 Sept 1918 – unknown
 
   - 185th Aero Squadron, (Night Pursuit)) 7 October – 11 November 1918
 
     - Located 1.2 miles (1.9 km) W of Remicourt, Champagne-Ardenne
  - French then American Air Service airfield.
  - Headquarters, VII Corps Observation Group, 30 Aug – 23 Nov 1918
  - Headquarters, I Corps Observation Group, 21 Sept – 5 Nov 1918 
- 1st Aero Squadron (Observation) 21 September – 5 November 1918
  - 12th Aero Squadron (Observation) 20 September – 3 November 1918
  - 50th Aero Squadron (Observation) 24 September – 28 October 1918
 
     - Located 0.7 miles (1.1 km) N of Saints, Île-de-France
  - French and American Air Service airfield.
  - Headquarters, 1st Pursuit Group, 9 July – 1 September 1918 
- 1st Aero Squadron (Observation) 29 June – 6 July 1918
  - 12th Aero Squadron (Observation) 29 June – 6 July 1918
 
   - Headquarters, I Corps Observation Group, 29 June – 6 July 1918 
- 27th Aero Squadron (Pursuit) 9 July – 3 September 1918
  - 94th Aero Squadron (Pursuit) 9 July – 1 September 1918
  - 95th Aero Squadron (Pursuit) 9 July – 2 September 1918
  - 147th Aero Squadron (Pursuit) 9 July – 1 September 1918
 
     - Located 1 mile (1.6 km) SW of Saizerais, Lorraine
  - French then American Air Service airfield.
  - Headquarters, VI Corps Observation Group, 25 Oct 1918 – 15 April 1919 
- 8th Aero Squadron (Observation), 22 Oct – 21 Nov 1918
  - 354th Aero Squadron (Observation), 25 October – 15 April 1919
 
     - Located 0.5 miles (0.80 km) N of Souilly, Lorraine
  - French and American Air Service airfield
  - Headquarters, V Corps Observation Group, 7–20 Sept 1918 
- 99th Aero Squadron (Observation) 7–20 September 1918
  - 104th Aero Squadron (Observation) 8–20 September 1918
 
   - Headquarters, III Corps Observation Group, 20 Sept – 29 Oct 1918 
- 88th Aero Squadron (Observation) 12–14 Sept 1918; 20 Sept – 4 Nov 1918
  - 90th Aero Squadron (Observation) 20 Sept – 29 Oct 1918
 
   - 13th Aero Squadron (Pursuit) 23 September – 16 December 1918
  - 49th Aero Squadron (Pursuit) 7 November 1918 – 7 December 1919
  - 22d Aero Squadron (Pursuit) 7 November 1918 – 29 January 1919
  - 139th Aero Squadron (Pursuit) 7 November 1918 – late January 1919
  - Det. of 24th Aero Squadron (Obs), 9–18 Oct 1918, 27 Oct – 6 Nov 1918
  - Det. of 91st Aero Squadron (Obs), 16 Oct 1918 – Nov 1918
  - 186th Aero Squadron (Observation), 29 Oct 1918 – 15 April 1919
    - Located 1.2 miles (1.9 km) WSW of Touquin, Île-de-France
  - French and American Air Service airfield.
  - Headquarters, 1st Pursuit Group, 28 June – 9 July 1918 
- 27th Aero Squadron (Pursuit) 28 June – 9 July 1918
  - 94th Aero Squadron (Pursuit) 30 June – 9 July 1918
  - 95th Aero Squadron (Pursuit) 28 June – 9 July 1918
  - 147th Aero Squadron (Pursuit) 28 June – 9 July 1918
 
     - Two airfields (French and American Air Services): first built 2.1 miles (3.4 km) NNW of Vaucouleurs, Lorraine, then second field 0.5 miles (0.80 km) west of the city, on the "Plateau de Bussy".
  - Headquarters, 3d Pursuit Group, 30 July – 20 September 1918 
- 28th Aero Squadron (Pursuit), 16 July –20 September 1918
  - 49th Aero Squadron (Pursuit), 28 July – 2 August 1918
  - 93d Aero Squadron (Pursuit), 28 July – 24 September 1918
  - 103d Aero Squadron (Pursuit), 7 August –20 September 1918
  - 213th Aero Squadron (Pursuit), 26 July – 24 September 1918[1]
  - 139th Aero Squadron (Pursuit), 28 May – 30 June 1918[1]
 
     - Located 0.6 miles (0.97 km) SSE of Vavincourt, Lorraine
  - American Air Service airfield and depot
  - Headquarters, 1st Army Observation Group, 22 September – 11 November 1918 
- 24th Aero Squadron (Obs) 22 September 1918 – 15 April 1919
  - 91st Aero Squadron (Obs) 21 September 1918 – 21 November 1918[1] 
- Det. operated from Souilly, 9–18 Oct 1918, 27 Oct-6 Nov 1918
 
   - 9th Aero Squadron (Night Observation) 21 Sept – 21 Nov 1918
 
     - Allied airfields at undetermined locations around Verdun, Lorraine 
- Detachment of 27th Aero Squadron (Pursuit) 25 Sep – 12 Dec 1918
  - Detachment of 95th Aero Squadron (Pursuit) 7 -11 Nov 1918
 
     - Located 3.4 miles (5.5 km) NE of Vertus, Champagne-Ardenne
  - French Air Service airfield
  - 1st Pursuit Organization and Training Center January 1918 – 5 May 1918 
- 94th Aero Squadron (Pursuit) 5 March – 1 April 1918
  - 95th Aero Squadron (Pursuit) 18 February – 1 April 1918
 
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