Master Sgt. John Swearingin, from the 176th Civil Engineer Squadron at the Anchorage Alaska Air National Guard, works on an electrical wiring box at the village medical clinic in Truong Thanh, Vietnam, as part of Operation Pacific Angel May 10. Pacific Angel is a joint and combined humanitarian and civic assistance operation conducted in the Pacific in support of U.S. Pacific Command's capacity building efforts. (U.S. Air Force photo/Capt. Timothy Lundberg)