The document summarizes the Peninsular War between Napoleon's forces and Britain/Spain led by Arthur Wellesley. Wellesley scored early victories against French marshals at Vimiero, Oporto, and Talavera. After liberating western Spain by taking Ciudad Rodrigo and Badajoz, Wellesley defeated Marshal Marmont at Salamanca. This final victory drove the French out of Spain, with Wellesley going on to defeat three French armies at Vitoria in 1813 and winning the war's final battle at Toulouse in 1814.