In 1945, the combined United States and Philippine Commonwealth ground troops, together with the recognized guerrillas, took Cagayan. Part of the action were the Filipino soldiers of the 1st, 2nd, 12th, 13th, 15th and 16th Infantry Division of the Philippine Commonwealth Army, 1st Constabulary Regiment of the Philippine Constabulary and the 11th and 14th Infantry Regiment of the United States Armed Forces in the Philippines – Northern Luzon or USAFIP-NL from the Battle of Cagayan Valley during the Second World War.