Air Force Vice Chief of Staff Gen. Carrol H. "Howie" Chandler congratulates Maj. Gen. Darren W. McDew, the new Air Force District of Washington commander, after passing him the unit guidon during a change of command ceremony at Andrews Air Force Base, Md., on Dec. 9, 2010. General McDew's prior assignment was at the Pentagon, where he was the vice director of Strategic Plans and Policy on the Joint Staff. (U.S. Air Force photo/Senior Airman Melissa V. Brownstein)