红旗-阿拉斯加 16-1 联合空战演习,美国空军 KC-135R 给“入侵者”空中加油。(U.S. Air Force Jan Stahl, 64th Aggressor Squadron pilot from Nellis Air Force Base, Nevada, refuels while augmenting the 18th Aggressor Squadron May 3, 2016, during RED FLAG-Alaska (RF-A) 16-1 at Eielson Air Force Base, Alaska. Pilots from both squadrons augment RF exercises to help broaden their flying skill sets and to help train DoD and partner nation pilots.)