Senior Airman Kelden Williams, 41st Aerial Port Squadron air transportation specialist, tightens the chains on a load onboard a C-17 Globemaster III during joint training mission Patriot Mustang GRIP II (Guard Reserve Inspiring Patriots). The mission included members of the Air Force Reserve, Army National Guard and Naval personnel at Stennis Space Center. (U.S. Air Force photo/Staff Sgt. Nicholas Monteleone)