美国内华达州内利斯空军基地，红旗 11-2 联合空战演习，路易斯安那州巴克斯代尔空军基地第96轰炸机中队的 B-52H“同温层堡垒”轰炸机正在起飞。(A U.S. Air Force B-52 Stratofortress aircraft assigned to the 96th Bomber Squadron, Barksdale Air Force Base, La., takes off from Nellis Air Force Base, Nev., Feb. 3, 2011, during Red Flag 11-2. Red Flag is a combat training exercise involving the air forces of the United States and its allies.)

美国内华达州内利斯空军基地，红旗 11-2 联合空战演习，路易斯安那州巴克斯代尔空军基地第96轰炸机中队的 B-52H“同温层堡垒”轰炸机正在起飞。(A U.S. Air Force B-52 Stratofortress aircraft assigned to the 96th Bomber Squadron, Barksdale Air Force Base, La., takes off from Nellis Air Force Base, Nev., Feb. 3, 2011, during Red Flag 11-2. Red Flag is a combat training exercise involving the air forces of the United States and its allies.)

美国内华达州内利斯空军基地，红旗 11-2 联合空战演习，路易斯安那州巴克斯代尔空军基地第96轰炸机中队的 B-52H“同温层堡垒”轰炸机升空后收起落架。(NELLIS AIR FORCE BASE, Nev. -- A U.S. Air Force B-52 Stratofortress from the 96th Bomb Squadron, Barksdale Air Force Base, La., takes off from Nellis Air Force Base, Nev. during a training mission at Red Flag 11-2 Feb. 3, 2011. Red Flag is a realistic combat training exercise involving the air forces of the United States and its allies.)

美国内华达州内利斯空军基地，红旗 11-2 联合空战演习中，美国空军第65入侵者中队一架“蓝色03”假想敌 F-15C 战斗机正在起飞。(A U.S. Air Force F-15 Eagle aircraft assigned to the 65th Aggressor Squadron, Nellis Air Force Base, Nev., takes off from the base on a training mission Feb. 3, 2011, during Red Flag 11-2. Red Flag is a combat training exercise involving the air forces of the United States and its allies.)