Established at Kelly Field after World War II concurrently with the establishment of the Military Air Transport Service Continental Division Headquarters. With Material Command's large aircraft depot maintenance and supply facilities at Kelly, provided worldwide transport of supplies and equipment to all parts of the world. Operated large fleets of C-54s, C-97s and primarily C-124 Globemaster II transports, frequently forming transport squadrons then once trained and equipped would reassign them to new MATS organizations. During the 1950s, the 1700th operated most of the MATS transport aircraft as well as passenger aircraft.