Staff Sgt. David Rippy and Senior Airman Mark Rippy, both reservists deployed from the 315th Aircraft Maintenance Squadron, Charleston Air Force Base, S.C., pose for a picture at Al Udeid Air Base, Qatar, March 11, 2014. Mark arrived in March and is the direct replacement for David at the 8th Expeditionary Aircraft Maintenance Squadron where both are hydraulic systems specialists supporting C-17 Globemaster IIIs who fly missions in support of Operation Enduring Freedom. (U.S. Air Force photo by Master Sgt. David Miller)