The 468th Bombardment Group was a World War II United States Army Air Forces combat organization.

Initial production B-29 aircraft received were in a constant state of being operationally ready or in a maintenance status for modification by Boeing technicians.

The program was seriously hampered by the need to work in the open air in inclement weather, by delays in acquiring the necessary tools and support equipment, and by the USAAF's general lack of experience with the B-29.

A crash program was initiated by General Hap Arnold, head of the Army Air Forces to put things in order.

The initial mission of the 468th in India was to use their aircraft to haul bombs, fuel, ammunition and spare parts 1,200 miles to its advanced base at Field A-7, Pengshan, Szechwan Province, China.

By late 1944, it established the best operational record of the four B-29 groups then in combat, for which Headquarters XX Bomber Command awarded it General Billy Mitchell's personal sailing burgee and authorized it to adopt the name "The General Billy Mitchell Group," a name requiring outstanding performance of duty.

In July 1944, the United States Marines invaded the Mariana Islands and as soon as West Field, Tinian, was readied in May 1945, the India-based B-29s were again designated the 58th Bombardment Wing and flew to West Field and continued the air offensive against Japan; operating as part of the new XXI Bomber Command.

The group flew many missions against strategic objectives in Japan; on numerous raids, made its attacks in daylight and from high altitude.

After V-J Day, the 497th dropped supplies to Allied prisoners, participated in show-of-force missions, and flew over Japan to evaluate bombardment damage.