Marines inspect a fuel line during a line walk as part of the fuel support operations training Oct. 2, 2018 at Camp Hansen, Okinawa, Japan. Bulk fuel specialists walk along fuel hoses to inspect for leaks or holes in the line before transporting fuel or water. The bulk fuel specialists assembled fuel sites at Camp Hansen in order to practice fueling support operations for upcoming exercises and deployments. (U.S. Marine Corps photo by Lance Cpl. Armando Elizalde)