U.S. Air Force Staff Sgt. Scott Cross, a pavement and equipment craftsman assigned to the 628th Civil Engineer Squadron, takes a breath after felling a dead tree ahead of Hurricane Matthew at Joint Base Charleston, S.C., Oct. 7, 2016. All non-essential personnel evacuated the area, but will return after disaster response coordinators assess damage and verify a safe operating environment. (U.S. Air Force photo by Tech. Sgt. Barry Loo)