Pilots with the 13th and 14th Fighter Squadrons fly alongside a KC-135 Stratotanker, assigned to Tennessee Air National Guard’s 134th Air Refueling Wing, over northern Japan, Jan. 18, 2017. Pilots must maintain tanker qualification every six months to stay proficient and capable for training and combat scenarios.   U.S. Air Force photo/Senior Airman Deana Heitzman