Lt. Col. Darryl Frazier, Deputy Commander of the 315th Maintenance Group, briefs Secretary Daniel Ginsberg, Assistant Secretary of the Air Force for Manpower and Reserve Affairs, on the side-by-side relationship between the reserve and active duty components during an official visit to Joint Base Charleston, S.C. Dec. 4, 2010. (U.S. Air Force photo/Senior Airman Robert Pilch)