U.S. Air Force Staff Sgt. Arrec Chetwood tightens a

U.S. Air Force Staff Sgt. Arrec Chetwood tightens a screw on the wing of an A-10C Thunderbolt II after the aircraft conducted a mission in the vicinity of Scarborough Shoal providing transparent air and maritime situational awareness April 21, 2016, at Clark Air Base, Philippines. Chetwood, who is deployed from Osan Air Base, Republic of Korea, is part of the first iteration of U.S. Pacific Command’s Air Contingent, which was stood up at the invitation of the Philippine government in order to build upon the relationship with Philippine counterparts, and lay the foundation for joint air patrols to complement ongoing joint maritime patrols. (U.S. Air Force photo by Capt. Susan Harrington)