The garrison operates Los Angeles Air Force Base and supports Space Systems Command.

The origins date to World War II where the 61st Troop Carrier Group (61 TCG) was a Douglas C-47 Skytrain transport unit assigned to both Twelfth and Ninth Air Forces in North Africa, Italy and Western Europe.

It flew airborne assault and resupply airdrop missions during the invasions of Sicily and Italy in 1943 and transported cargo and personnel throughout the North African and Mediterranean theaters.

Also provided transport services in the European theater, hauling gasoline, ammunition, food, medicine, and other supplies, and evacuating wounded personnel.

In 1950, the group moved to the United States shortly after the outbreak of the Korean War for duty with Military Air Transport Service.

The unit was inactivated and its assets absorbed by the 24th Wing when the 310th's mission was transferred to Air Combat Command on 1 June 1992.

[3] Now-Space Base Delta 3 continues to provide facilities support for the successor to SMC, Space Systems Command.