The plan of U.S. Fifth Army commander General Clark was for British X Corps , on the left of a twenty mile ( 30 km ) front , to attack on January 17 , 1944 , across the Garigliano near the coast ( British 5th and British 56th Infantry Divisions ) .
The plan of U.S. Fifth Army commander General Clark was for British X Corps to attack on January 17 , 1944 .