During World War II the U.S. Army operated approximately 127,800 watercraft of various types. Those included large troop and cargo transport ships that were Army-owned hulls, vessels allocated by the War Shipping Administration, bareboat charters and time charters. In addition to the transports the Army fleet included specialized types. Those, included vessels not related to transport such as mine vessels and waterway or port maintenance ships and other service craft. The numbers below give an idea of the scope of that Army maritime operation: