Battle of the Ebro

Battle context

The Battle of the Ebro was the longest and largest battle of the Spanish Civil War, and the greatest in terms of manpower, logistics, and material ever fought on Spanish soil. Concentrated along the lower course of the Ebro River across the Terra Alta comarca of Catalonia and the Auts area near Fayón in eastern Lower Aragon, it engaged the largest array of armies seen in the war. Despite committing around 80,000 troops under commanders including Vicente Rojo Lluch, Juan Modesto, and Enrique Líster, the Second Spanish Republic suffered tens of thousands dead and wounded with little effect on the Nationalist advance. The battle proved a massive blow to Republican war capacity, depleting manpower and materiel that could not be replaced at a decisive phase of the conflict, while the Nationalists under Franco, with roughly 90,000 troops and lower reported casualties, maintained their operational momentum. The outcome effectively exhausted the Republic's offensive capacity and accelerated the trajectory toward Nationalist victory in 1939.