Col. Steven Kwast, 455th Air Expeditionary Wing commander, addresses his newly assigned command as Lt. Gen. Gary L. North, 9th Air Force and U.S. Air Forces Central commander, applauds during the change of command ceremony at Bagram Air Field, Afghanistan, April 18. Colonel Kwast was last assigned as Deputy Director of Requirements, Headquarters Air Combat Command, Langley Air Force Base, Va. (U.S. Air Force photo/Senior Airman Erik Cardenas)(Released)