ORDER OF BATTLE // July 23, 1941
Battle of Zarumilla
Estimated force strength by side, with confidence labels per surviving record.
Forces engaged
1 sides catalogued · combined 7,000–10,000 estimated
Вооружённые силы Перу
7,000–10,000
Medium-confidence figure
Battle context
The Battle of Zarumilla was the opening offensive of the 1941 Ecuadorian–Peruvian War, lasting from July 23 to 31. Peruvian forces numbering between 7,000 and 10,000 engaged Ecuadorian defenders, who suffered 1,334 casualties in the course of the fighting. The operation established Peru's military initiative in the conflict and set the terms under which the broader war would unfold. Commanded by Eloy Ureta, Manuel Odría, and José Marín on the Peruvian side, the offensive demonstrated a significant disparity in combat power between the two belligerents and positioned Peru to dictate the subsequent diplomatic and territorial settlement of the dispute.
‹ Full battle dossierSources (15)
Monograph
El Ejército Ecuatoriano en La Campaña Internacional de 1941 y en La Post Guerra
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Estudio del conflicto Perú-Ecuador (1941-1942) con base en el análisis hemerográfico del diario La Industria (enero 1941 - febrero 1942)
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Honor y gloria. La resistencia del cañonero Abdón Calderón y el patrullero Aviso Atahualpa
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Las Operaciones Navales durante el Conflicto con el Ecuador de 1941: apuntes para su historia
→ Open sourceMonograph