sentences:  Here it was commanded by Lieutenant-General Richard McCreery.After Salerno it continued to fight on the Fifth Army's left wing, breaching the Volturno Line and including taking part in the first Battle of Monte Cassino in January 1944.In the spring of 1944 the corps was relieved by the French Expeditionary Corps (CEF) and switched back to the Eighth Army, taking position on the right of XIII Corps.