The Battle of Salamanca took place on 22 July 1812. An Anglo-Portuguese army under the Earl of Wellington defeated Marshal Auguste Marmont's French forces at Arapiles, south of Salamanca, Spain, during the Peninsular War. A Spanish division was also present but took no part in the battle.

The Anglo-Portuguese Army was the combined British and Portuguese army that participated in the Peninsular War, under the command of Arthur Wellesley. The Army is also referred to as the British-Portuguese Army and, in Portuguese, as the Exército Anglo-Luso or the Exército Anglo-Português.