The 1941 War of the Andes: A Forgotten Conflict Between Ecuador and Peru
While the world focused on the Second World War, a fierce border conflict erupted between Ecuador and Peru. Known as the War of 41, this three-month struggle over Amazonian territory saw tanks, airstrikes, and naval maneuvers, leaving a legacy of territorial disputes that would not fully resolve until 1998.
The Ecuadorian–Peruvian War, which lasted from July 5 to October 2, 1941, was the first of three military conflicts between the two nations in the 20th century. Rooted in a territorial disagreement dating back to the era of Gran Colombia, the dispute centered on whether Ecuador’s borders extended across the Andes to the Amazonian basin. Tensions escalated throughout the late 1930s, fueled by secret treaties like the 1922 Salomón–Lozano agreement between Peru and Colombia, which Ecuador viewed as a threat to its own sovereignty.
By 1941, both nations were mobilizing. Peru formed the Northern Army Detachment, a force of approximately 11,500 to 13,000 men equipped with Czechoslovak LTP tanks and air support. Hostilities began on July 5, with both sides blaming the other for firing the first shots along the Zarumilla River. The conflict quickly intensified, with Peru launching a major offensive on July 23. Peruvian forces occupied the Ecuadorian province of El Oro, parts of Loja, and disputed Amazonian territories. Notable engagements included the battle at Chacras, where Lieutenant César Edmundo Chiriboga González and his men fought to the death, and the strategic bombing of Puerto Bolívar.
A ceasefire was attempted on July 31, but fighting persisted until October 2. The conflict officially concluded with the Rio Protocol, signed on January 29, 1942, which led to the withdrawal of Peruvian forces. However, the agreement failed to permanently settle the underlying border issues. Enmity persisted for decades, leading to further skirmishes and the eventual Cenepa War of 1995. It was not until the signing of the Brasilia Presidential Act in October 1998 that the long-standing territorial dispute was finally resolved, ending a century of intermittent conflict between the two neighbors.
Source: Ecuadorian–Peruvian War
