He was succeeded by Manuel Menéndez, who served as constitutional president until he was overthrown by General Juan Crisóstomo Torrico, beginning a period of political instability to the point of anarchy.

To justify himself, he argued a series of reasons, such as the fact that the supporters of Andrés de Santa Cruz, who at that time was exiled in Ecuador, were still operating in Bolivia.

Once war was declared, the Peruvian army stationed in Puno invaded Bolivia, advancing through Huancané, Moho and Sorata, and on October 19, 1841, it occupied La Paz, where it camped.

With Gamarra dead, Bolivian troops occupied southern Peru, but after they were expelled by the Peruvian Army, the Treaty of Puno was signed between both countries on June 7, 1842, officially ending the war.

[1][2][3] Gamarra was succeeded by Manuel Menéndez, who served as constitutional president until he was overthrown by General Juan Crisóstomo Torrico, beginning a period of military anarchy.