Marines with Bulk Fuel Company, 9th Engineer Support Battalion, 3rd Marine Logistics Group, unfold a collapsible fuel bladder during fuel support operations training Oct. 2, 2018 at Camp Hansen, Okinawa, Japan. The 9th ESB Marines used collapsible storage bladders to hold fuel, which is dispensed to supporting units during fueling support operations on exercises. (U.S. Marine Corps photo by Lance Cpl. Armando Elizalde)