U.S. Army Sgt. Joshua Moffett, an optometry technician, assigned to Tripler Army Medical Center, Hawaii, poses for a photo in a make-shift optometry clinic at a health services outreach site during Pacific Angel (PACANGEL) 17-2 in Tam Ky, Quang Nam Province, Vietnam, Sept. 15, 2017. Since 2007, PACANGEL engagements have impacted the lives of tens of thousands of people by providing civil engineering programs, humanitarian aid and disaster relief and subject matter exchanges. (U.S. Air Force photo/Tech. Sgt. Kamaile Casillas)