Air transportation specialists with the 81st Aerial Port Squadron at Joint Base Charleston, S.C. secure a trailer with tiedown chains on a C-17 Globemaster III Jan. 23, 2019, at Joint Base Charleston, S.C. The APS members deployed with the 315th Contingency Response Flight from Joint Base Charleston, S.C., to the South Pacific in support of Exercise Patriot Palm. (U.S. Air Force photo by 1st Lt. Rashard Coaxum)