A United States Air Force F-35A Lightning II aircraft assigned to Hill Air Force Base, Utah, is refueled by a 459th Air Refueling Wing KC-135 Stratotanker during a flight to Graf Ignatievo Air Base, Bulgaria, April 28, 2017. Eight F-35s deployed to RAF Lakenheath, England on April 15 and two forward deployed to Bulgaria for a brief time which allowed the F-35s to engage in familiarization training within the European theater while reassuring allies and partners of U.S. dedication to the enduring peace and stability of the region. (U.S. Air Force photo by Staff Sgt. Kate Thornton) #airman #airmanmagazine #airforce #airpower #plane #planes #jet #jets #aviation #aerial #pilot #pilots #military #airmen #usmilitary #fly #aimhigh #aircraft #jet #jetengine #engine #propulsion #f35 #refueling #f35lightningii #hillafb #raflakenheath #bulgaria #flight