The 1st Proving Ground Group is a disbanded United States Army Air Forces unit. It was last active with the Army Air Forces Proving Ground Command, based at Eglin Field, Florida, where it was disbanded on 1 April 1944. The unit's personnel/equipment/mission was taken over by the 610th Army Air Forces Base Unit and 611th AAF Base Unit.

The 1st Special Operations Squadron is part of the 353d Special Operations Group at Kadena Air Base, Japan. It operates the MC-130J Commando II, providing special operation capabilities. Air crews are trained in night low-level flying, using night vision goggles to deliver troops and equipment into denied areas during adverse weather conditions at night by airdrop or landing.