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红旗-阿拉斯加 15-2 联合空战演习，美国空军哥伦比亚特区空中国民警卫队的 F-16D 战斗机在艾尔森空军基地滑行。（An F-16 Fighting Falcon pilot from the 113th Wing, District of Columbia Air National Guard, gives a thumbs up before take off April 27, 2015, at Eielson Air Force Base, Alaska. The unit is preparing to participate in RED FLAG-Alaska 15-2 large-force employment training.）