LRS Fuel
An R-11 mobile fuel truck is backed into place at Osan Air Base, Republic of Korea, Oct. 15, 2015. The R-11, capable of holding up to 6,000 gallons of fuel, is the work horse of the 51st Logistics Readiness Squadron petroleum, oils and lubricants flight. (U.S. Air Force photo/Staff Sgt. Amber Grimm)