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| 1899 - 03 4 Colombian civil war 120,000 deaths |
| 1903 Panama secedes from Columbia |
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| 1964 Colombian Armed Conflict Colombia 50,000 200,000 |
| 1964 - present 47 Ongoing Colombian armed conflict |
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| 1932 - 3 1 ColombiaPeru War Colombia Peru |
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| 1948 - 1958 Colombian civil war 250,000 deaths |
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| 1980 - 2000 20 Internal conflict in Peru Peru
Rondas Campesinas Shining Path
Túpac Amaru Revolutionary Movement |
| 1981 Paquisha War Peru Ecuador |
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| 1912 6 4 Contestado War Brazilian Governists Rebels |
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| 1932 Ecuadorian Civil War Ecuador |
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| 1941 Ecuadorian-Peruvian War Peru Ecuador |
| 1995 Cenepa War Peru Ecuador |
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| 1914 Battle of Coronel, Chile. 1 November Admiral Graf Spee defeats Admiral Cradock |
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| 1976 83 7 Dirty War Argentina |
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| 1939 Battle of River Plate, Argentina. 13 December Admiral Graf Spee chased into Montevideo harbour scuttled |
| 1982 Falklands War United Kingdom Argentina |
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| 1932 - 5 3 Chaco War Paraguay Bolivia |
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| 1947 Paraguayan Civil War Government of Paraguay
Colorado Party
Supported by:
Argentina Coalition of Rafael Franco
Revolutionary Febrerista Party Paraguayan Communist Party Liberal Party |
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