Original sentence: On May 17, 1944, after a grueling 65-mile march over the 6,000-foot Kumon Mountain range (using mules for carrying supplies) to Myitkyina, approximately 1,300 remaining Marauders, along with elements of the 42nd and 150th Chinese Infantry Regiments, attacked the unsuspecting Japanese at the Myitkyina airfield
Edited sentence: On May 17, 1944, after a grueling 65-mile march over the 6,000-foot Kumon Mountain range (using mules for carrying supplies) to Myitkyina, approximately 1,300 remaining Marauders, along with elements of the 42nd and 150th Chinese Infantry Regiments of the X Force, attacked the unsuspecting Japanese at the Myitkyina airfield