The Battle of Salamanca saw the Anglo-Portuguese army under the Duke of Wellington defeat Marshal Auguste Marmont's French forces among the hills around Arapiles, south of Salamanca, Spain on 22 July 1812 during the Peninsular War. A Spanish division was also present but took no part in the battle. The battle was a succession of strokes in oblique order, initiated by the British heavy cavalry brigade and Pakenham's 3rd division, and continued by the cavalry and the 4th, 5th and 6th divisions. The French left wing was routed.