 When the U.S. Army's X Corps went ashore at Inchon in September 1950, 13 USNS cargo ships, 26 chartered American, and 34 Japanese-manned merchant ships, under the operational control of MSTS, participated in the invasion.Sealift responsibilities were accomplished on short notice during the Korean War.Initially American troops lacked the vital equipment to fight the North Koreans, but military and commercial vessels quickly began delivering the fighting tools needed to turn back the enemy.