U.S. Air Force Staff Sgt. James Harp, C-17 Globemaster III Loadmaster, performs engine start-up procedures with the onboard crew during a redeployment mission headed for Afghanistan, Sept. 11, 2012. Harp is currently part of the 817th Expeditionary Airlift Squadron, deployed to the Transit Center at Manas, Kyrgyzstan. The 817th and their C-17s are an integral piece of the redeployment mission and help to move cargo within the area of operation and transport passengers during redeployment missions.