Ecuador-Peru Conflict, 1941

The Ecuadorian–Peruvian War, known locally as the War of the '41 (Spanish: Guerra del 41), was a South American border war fought between 5–31 July 1941. It was the first of three military conflicts between Ecuador and Peru during the 20th century. During the war, Peru occupied the western Ecuadorian province of El Oro and parts of the Andean province of Loja. Although the war took place during World War II, it is unrelated to that conflict, as neither country was supported by either the Allies or the Axis. A ceasefire agreement between the two countries came into effect on 31 July 1941. Both countries signed the Rio Protocol on 29 January 1942, and Peruvian forces subsequently withdrew. The enmity over the territorial dispute continued after 1942 and concluded following the Cenepa War of 1995 and the signing of the Brasilia Presidential Act agreement in October 1998.