The Battle of Sans Culottes Camp saw a Spanish army commanded by José de Urrutia y de las Casas attack part of the French Army of the Western Pyrenees under Jean-Henri-Guy-Nicolas de Frégeville. The Spanish assault seized two key positions behind the Bidasoa River but was unable to overrun the main position, called Sans Culottes Camp after an eight-hour contest. The War of the Pyrenees action was fought at a location described as being "in front" of Saint-Jean-de-Luz near the modern France–Spain border.