List of wars involving Brazil

This is a list of wars involving the Federative Republic of Brazil and its predecessor states, starting from 1815, when Brazil was elevated to a kingdom within the United Kingdom of Portugal, Brazil, and the Algarves, up to the present day.

United Kingdom of Portugal, Brazil and the Algarves (1815–1822)

Conflict	Combatant 1	Combatant 2	Result	King
Portuguese conquest of the Banda Oriental (1816–1820)	United Kingdom of Portugal, Brazil and the Algarves	Federal League Entre Ríos Misiones Corrientes Santa Fe Córdoba	Luso-Brazilian victory Annexation of the Banda Oriental by the United Kingdom of Portugal, Brazil and the Algarves	John VI

Empire of Brazil (1822–1889)

Conflict	Combatant 1	Combatant 2	Result	Emperor
Brazilian War of Independence (1822^[1]–1825)	Independentists Empire of Brazil (from 7 September 1822)	Loyalists Portuguese Empire Kingdom of Brazil	Independentist victory Treaty of Rio de Janeiro	Pedro I
Confederation of the Equator (1824)	Empire of Brazil	Confederation of the Equator	Loyalist victory
Cisplatine War (1825–1828)	Empire of Brazil	United Provinces	Preliminary Peace Convention Cisplatina becomes independent as Uruguay^[a]
Irish and German Mercenary Soldiers' revolt (1828)	Empire of Brazil	Irish and German Mercenary Rebels	Empire of Brazil victory Revolt suppressed
Cabanagem (1835–1840)	Empire of Brazil	Cabanos	Empire of Brazil victory	Pedro II
Ragamuffin War (1835–1845)	Empire of Brazil	Piratini Republic Juliana Republic Italian Redshirts Support: Colorados Unitarians	Imperial victory The Juliana Republic and the Riograndense Republic are dissolved and reintegrated into the Empire.
Sabinada (1837–1838)	Empire of Brazil	Bahia Republic	Government victory Reincorporation of Bahia into Brazil.
Platine War (1851–1852)	Empire of Brazil Defence Government Argentine rebels Entre Ríos Corrientes Santa Fe Co-belligerent: Paraguay (1845–1850) Supported by: Bolivia United Kingdom France Paraguay (1851–1852)	Argentine Confederation Cerrito Government	Brazilian-led allied victory^[2] Buenos Aires clout over the Platine region ends^[2] Brazilian hegemony in the Platine region starts^[3]^[4]
Uruguayan War (1864–1865)	Empire of Brazil Colorados Argentina Unitarios	Uruguay Blancos Federales Support: Paraguay	Brazilian–Colorado victory Start of the Paraguayan War
Paraguayan War (1864^[5]–1870)	Empire of Brazil Argentina Uruguay	Paraguay	Allied victory Treaty of the Triple Alliance ended Loizaga–Cotegipe Treaty between Brazil and Paraguay Machaín-Irigoyen Treaty between Argentina and Paraguay Free navigation in the Platine region Allied occupation of Paraguay Paraguay permanently lost its claims to lands amounting to almost 40% of its prewar claimed territories. Brazil definitively gained the disputed territories north of the Apa River, now part of Mato Grosso do Sul state. Argentina definitively gained the disputed Misiones Province and all the disputed lands south of the Pilcomayo River now constituting Formosa Province.

Brazilian Republic (1889–)

Conflict	Combatant 1	Combatant 2	Result	President
Federalist Revolution (1893–1895)	Brazil	Federalist rebels Navy rebels Uruguayan volunteers	Government victory	Floriano Peixoto
Trinidad Conflict (1893-1897)	Brazilian government Supported by: Portugal	Principality of Trinidad United Kingdom	Government Victory Brazil Stabilishes Sovereignty over Trinidad and Martim Vaz Archipelago	Floriano Peixoto Prudente de Morais
Manhuassu Conflict (1896)	Brazilian government	Manhuassu Republic	Government victory Serafim Escapes to Espirito Santo	Prudente de Morais
War of Canudos (1896–1897)	Brazil Brazilian Army Police Corps	Canudos inhabitants Jagunços Civil militia	Government victory Movement squashed Settlements destroyed and survivors massacred	Prudente de Morais
Acre War (1899–1903)	Republic of Acre Supported by: Brazil	Bolivia Supported by: United States	Brazilian victory Treaty of Petrópolis (between Bolivia and Brazil) Valerde-Río Branco Treaty (between Brazil and Peru) Polo-Bustamante Treaty (between Peru and Bolivia) Brazilian annexation of Acre	Campos Sales Rodrigues Alves
Contestado War (1912–1916)	Brazil Brazilian Army Paraná Police	Rebels	Government victory	Hermes da Fonseca
Contestado War (1912–1916)	Brazil Brazilian Army Paraná Police	Rebels	Government victory	Venceslau Brás
First World War (1914–1918) (Limited involvement, 1917–1918)	Allied Powers: France United Kingdom and Empire: Australia Canada Ceylon Egypt Newfoundland New Zealand India South Africa Russia (until 1917)^[b] Italy (from 1915) United States (from 1917) Japan Brazil and others	Central Powers: German Empire Austria-Hungary Ottoman Empire Bulgaria (from 1915) and others	Allied Powers victory (see Aftermath of World War I) Partition of the Ottoman Empire, dissolution of Austria-Hungary, Partition of German territories, all of their colonies lost, Bulgaria lost Thrace and smaller border areas Formation of new countries in Europe and the Middle East, such as Poland, Yugoslavia, Weimar Germany, Soviet Russia and Soviet Union, Lithuania, Estonia, Latvia, Austria, Hungary, Czechoslovakia, Turkey, Hejaz, and Yemen	Venceslau Brás
Constitutionalist Revolution (1932)	Federal government Brazilian Army Army Aviation Brazilian Navy Marine Corps Naval Aviation Loyalists Police Corps Minas Gerais Rio de Janeiro Paraná	Constitutionalists São Paulo São Paulo Police 2nd Army Maracaju Gaúcho United Front	Government and loyalist victory Brazilian Constitution of 1934	Getúlio Vargas
Second World War (1939–1945^[c]) (Limited involvement, 1942–1945)	Allies United States Soviet Union United Kingdom China Brazil and others	Axis Germany Italy Japan and others	Allied victory	Getúlio Vargas
Dominican Civil War (1965^[6])	Loyalist faction United States IAPF Brazil Paraguay Nicaragua Costa Rica El Salvador Honduras^[6]	Constitutionalist faction Dominican Revolutionary Party Social Christian Revolutionary Party June 14th Revolutionary Movement	Loyalist victory Ceasefire declared Formation of the provisional government for new elections Deposition of Juan Bosch of the presidency ratified Organization of presidential elections in 1966 under international supervision Election of Joaquín Balaguer as the new president Establishment of the Fourth Dominican Republic on July 1, 1966	Humberto Castelo Branco

Notes

^
Articles I and II of the Preliminary Peace Convention, Câmara dos Deputados 1828, p. 121 harvnb error: no target: CITEREFCâmara_dos_Deputados1828 (help):
- Article I: "His Majesty, the Emperor of Brazil, declares the Province of Montevideo, today called Cisplatina, separated from the territory of the Empire of Brazil, so that it can constitute itself in a free State, and independent of all and any nation, under the form of government that it deems most suited to its interests, needs and resources."
- Article II: "The government of the Republic of the United Provinces of the Río de la Plata agrees to declare, for its part, the independence of the Province of Montevideo, today called Cisplatina, so that it constitutes a free and independent State in the terms declared in the preceding article."
^ The Russian Empire during 1914–1917, the Russian Republic during 1917. The Bolshevik government signed a separate peace with the Central Powers shortly after their armed seizure of power, resulting in a Central Powers victory on the Eastern Front of the war, and the Russian Soviet Federative Socialist Republic's defeat. However, this peace treaty was nullified by an Allied Powers victory on the Western Front, and the end of the war.
^ While various other dates have been proposed as the date on which World War II began or ended, this is the period most frequently cited.

References

^ Franchini 2015, p. 26, "On 1 August 1822, the war formally began, which little by little reached the territories of the Empire. August 1st is mentioned because it was the date of issuance of two decrees, one that declared as enemies all Portuguese troops that entered Brazil without the Regent's consent, and another in which the Regent explained the causes of the 'war waged against Portugal'".
^ ^a ^b Halperín Donghi 2007, p. 91.
^ Furtado 2000, p. 10.
^ Golin 2004, p. 42.
^ Whigham 2002, pp. 161, 446 n.87.
^ ^a ^b Lawrence Yates (July 1988). "Power Pack: U.S. Intervention in the Dominican Republic 1965–1966" (PDF). Lawrence Papers. Archived from the original (PDF) on October 11, 2017. Retrieved June 28, 2015.

Bibliography

Fausto, Boris; Fausto, Sérgio (2022). História Concisa do Brasil. EDUSP. ISBN 978-85-3141-582-1.
Halperín Donghi, Tulio (2007). The Contemporary History of Latin America. Durham: Duke University Press. ISBN 978-08-2231-374-8.

[2] Articles I and II of the Preliminary Peace Convention, Câmara dos Deputados 1828, p. 121:
Article I: "His Majesty, the Emperor of Brazil, declares the Province of Montevideo, today called Cisplatina, separated from the territory of the Empire of Brazil, so that it can constitute itself in a free State, and independent of all and any nation, under the form of government that it deems most suited to its interests, needs and resources."

Article II: "The government of the Republic of the United Provinces of the Río de la Plata agrees to declare, for its part, the independence of the Province of Montevideo, today called Cisplatina, so that it constitutes a free and independent State in the terms declared in the preceding article."

[2] Article I: "His Majesty, the Emperor of Brazil, declares the Province of Montevideo, today called Cisplatina, separated from the territory of the Empire of Brazil, so that it can constitute itself in a free State, and independent of all and any nation, under the form of government that it deems most suited to its interests, needs and resources."

[3] Article II: "The government of the Republic of the United Provinces of the Río de la Plata agrees to declare, for its part, the independence of the Province of Montevideo, today called Cisplatina, so that it constitutes a free and independent State in the terms declared in the preceding article."

[7] The Russian Empire during 1914–1917, the Russian Republic during 1917. The Bolshevik government signed a separate peace with the Central Powers shortly after their armed seizure of power, resulting in a Central Powers victory on the Eastern Front of the war, and the Russian Soviet Federative Socialist Republic's defeat. However, this peace treaty was nullified by an Allied Powers victory on the Western Front, and the end of the war.

[8] While various other dates have been proposed as the date on which World War II began or ended, this is the period most frequently cited.

[FOOTNOTEFranchini201526"On_1_August_1822,_the_war_formally_began,_which_little_by_little_reached_the_territories_of_the_Empire._August_1st_is_mentioned_because_it_was_the_date_of_issuance_of_two_decrees,_one_that_declared_as_enemies_all_Portuguese_troops_that_entered_Brazil_without_the_Regent's_consent,_and_another_in_which_the_Regent_explained_the_causes_of_the_'war_waged_against_Portugal'"-1] Franchini 2015, p. 26, "On 1 August 1822, the war formally began, which little by little reached the territories of the Empire. August 1st is mentioned because it was the date of issuance of two decrees, one that declared as enemies all Portuguese troops that entered Brazil without the Regent's consent, and another in which the Regent explained the causes of the 'war waged against Portugal'".

[FOOTNOTEHalperín_Donghi200791-3] Halperín Donghi 2007, p. 91.

[FOOTNOTEFurtado200010-4] Furtado 2000, p. 10.

[FOOTNOTEGolin200442-5] Golin 2004, p. 42.

[FOOTNOTEWhigham2002161,_446_n.87-6] Whigham 2002, pp. 161, 446 n.87.

[NukEm-9] Lawrence Yates (July 1988). "Power Pack: U.S. Intervention in the Dominican Republic 1965–1966" (PDF). Lawrence Papers. Archived from the original (PDF) on October 11, 2017. Retrieved June 28, 2015.

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Lists of wars involving South American countries
Sovereign states	Argentina Bolivia Chile Colombia Ecuador Guyana Paraguay Peru Suriname Uruguay Venezuela
Dependencies and other territories	Falkland Islands French Guiana South Georgia and the South Sandwich Islands

Years in Brazil (1822–present)
19th century	1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900
20th century	1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000
21st century	2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025