The Second Battle of Boulou, 29 April to 1 May 1794, saw the French Army of the eastern Pyrenees led by Jacques François Dugommier attacking the joint Spanish-Portuguese Army of Catalonia under Luis Firmin de Carvajal, Conde de la Union. The decisive French victory resulted in the French regaining nearly all the land they lost to the Kingdom of Spain in 1793. Le Boulou is on the modern A9 highway, 20 km south of the department capital at Perpignan and seven km north of Le Perthus on the France-Spain border.