Cargo is delivered to a C-17 Globemaster III as 730th Air Mobility Squadron members train Airmen from the 123rd Airlift Wing contingency response group, at Yokota Air Base, Japan, Aug. 24, 2017. The primary mission of the CRG is to provide rapidly deployable forces to the U.S. Air Force to open forward airfields in an expeditionary environment as a completely self-contained unit. (U.S. Air Force photo by Staff Sgt. David Owsianka)