Staff Sgt. Shawn O’Keefe, an air transportation specialist assigned to the 388th Maintenance Group, positons rolling stock at the base of a C-17 Globemaster III ramp at Hill Air Force Base, Utah, Oct. 13, 2017. The cargo, which will support two F-35A Lightning II aircraft, is en route to the 2017 Seoul International Aerospace & Defense Exhibition, Northeast Asia’s largest airshow. The U.S. is honored to participate in Seoul ADEX 17 and is committed to ensuring our partnership with the ROK remains strong. (U.S. Air Force photo by Paul Holcomb)