Conflict Combatant 1 Combatant 2 Results Azerbaijan Democratic Republic (1918–1920) Armenian–Azerbaijani War (1918–1920) Azerbaijan Ottoman Empire Azerbaijan SSR Russian SFSR Armenia Mountainous Armenia United Kingdom Centrocaspian Dictatorship Soviet victory Karabakh dispute settled in Azeri favor Red Army invasion of Azerbaijan (1920) Azerbaijan Russian SFSR Azerbaijani Bolsheviks Defeat Overthrow of the ADR government Ganja Uprising (1920) Russian SFSR Azerbaijan SSR Rebels Bolshevik victory Defeat of the rebels Republic of Azerbaijan (1991–) Nagorno-Karabakh War (1988–1994) Azerbaijan Hezb-e Islami Chechen militants Nagorno-Karabakh Armenia Defeat Independence Nagorno-Karabakh Four-Day War (2016) Azerbaijan Nagorno-Karabakh Armenia Disputed Azerbaijan takes 800–2,000 hectares of land