Battle of Montenegro

Battle of Montenegro
Part of the Argentine Front
Argentine cuirassiers at the time of the battle
Date 24 June 1838 Location Montenegro - Cuyambuyo (now in Bolivia) Result Peru–Bolivian Confederation victory
Belligerents
Argentine Confederation	Peru–Bolivian Confederation
Commanders and leaders
Gregorio Paz	Otto Philipp Braun Francisco Burdett O'Connor
Strength
750 to 800	Between 260 and 1,900
Casualties and losses
250-300 dead, wounded, captured and missing	10-300 dead 15-226 wounded

The Battle of Montenegro, also called the Battle of Cuyambuyo, was fought on 24 June 1838 during the war between Argentina and the Peru–Bolivian Confederation.

The invading Argentine army was defeated by a force led by Otto Philipp Braun supported by Francisco Burdett O'Connor, settling the location of Bolivia's southwestern border.^[1]