U.S. Air Force Tech Sgt. Jassen Manrrique, 100th Logistics Readiness Squadron NCO-in-charge of fuels facilities, and Senior Airman Kameron Ware, 100th LRS Fuels Facilities operator, service liquid oxygen carts at RAF Mildenhall, England, Oct. 12, 2018. Facilities Airmen wear protective equipment while testing liquid oxygen due to the low temperature of - 297 degrees Fahrenheit. (U.S. Air Force photo by Staff Sgt. Christine Groening)