LANGLEY AIR FORCE BASE, Va. -- Col. Kevin Altman (left), then-633d Mission Support Group commander, stands at attention alongside Lt. Col. Randy Rivera (center) and Lt. Col. Christopher Wegner at the 633d Contracting Squadron change of command ceremony at Air Power Park June 28. Colonel Wegner assumed command of the squadron from Colonel Rivera. (Courtesy photo)

LANGLEY AIR FORCE BASE, Va. -- Col. Kevin Altman (left), then-633d Mission Support Group commander, presents the unit guidon to Lt. Col. Christopher Wegner at the 633d Contracting Squadron change of command ceremony at Air Power Park June 28. Colonel Wegner assumed command of the squadron from Lt. Col. Randy Rivera. (Courtesy photo)