Peruvian–Bolivian War of 1841–42

Peruvian–Bolivian War of 1841–1842

Battle of Ingavi
Date1 October 1841 – 7 June 1842
Location
Peru and Bolivia
Result
  • Peruvian invasion repelled by Bolivian troops
  • Bolivian invasion repelled by Peruvian troops
Territorial
changes
Status quo ante bellum
Belligerents
Peru Bolivia
Commanders and leaders
Agustín Gamarra 
Manuel de Mendiburu
Juan Buendía
José María Lavayén
Justo Arias y Aragüez
José Rosa Ara
Miguel de San Román
José Ballivián
Eusebio Guilarte
Jorge Córdova
Narciso Campero
Manuel Magariños
Bernardo Rojas
José María García
José Velasco
Strength
7,000–9,000 men 6,800–7,700 men

The Peruvian–Bolivian War was a warlike confrontation between Peru and Bolivia in the years 1841 and 1842.

In 1841, Agustín Gamarra, President of Peru, tried to annex Bolivia, which cost the Peruvian president his life on November 18, 1841 at the Battle of Ingavi. The Bolivian Army, under the command of General José Ballivián, occupied the Peruvian provinces of Moquegua, Puno, Tarapacá, Tacna and Arica.

The eviction of Bolivian troops in southern Peru would be achieved by the increased availability of material and human resources in Peru. At the end of the war, the Treaty of Puno was signed on June 7, 1842.