美国内华达州内利斯空军基地，红旗 12-4 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”轰炸机完成演习任务后准备降落。(Capt. Bandy Jeffrey and Capt. Brandon Fritz, 96th Bomb Squadron B-52H Stratofortress pilots from Barksdale Air Force Base, La., prepare to land after a mission July 25 at Nellis AFB, Nev., during a Red Flag exercise. Red Flag provides an opportunity for Air Force Global Strike Command units to demonstrate their ability to deploy long-range strike forces and deliver precision effects that strengthens the nuclear enterprise.)

美国内华达州内利斯空军基地，红旗 12-4 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”轰炸机在演习区域飞行。(Two B-52H Stratofortress bombers are en route for a mission July 25 at Nellis Air Force Base, Nev., during a Red Flag exercise. Red Flag provides an opportunity for Air Force Global Strike Command units to demonstrate their ability to deploy long-range strike forces and deliver precision effects that strengthen the nuclear enterprise.)

美国内华达州内利斯空军基地，红旗 12-4 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”轰炸机起飞执行演习任务。(A B-52H Stratofortress bomber is in route to a mission July 25 at Nellis Air Force Base, Nev., during a Red Flag exercise. Red Flag provides an opportunity for Air Force Global Strike Command units to demonstrate their ability to deploy long-range strike forces and deliver precision effects that strengthen the nuclear enterprise.)

美国内华达州内利斯空军基地，红旗 12-4 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”轰炸机准备出动。(A B-52H Stratofortress rests on the tarmac before taking flight during a Red Flag exercise, July 23, at Nellis Air Force Base, Nev. Red Flag exercises provide an opportunity for Air Force Global Strike Command units to demonstrate their ability to deploy long-range strike forces and deliver precision effects that strengthen the nuclear enterprise.)

美国内华达州内利斯空军基地，红旗 2012 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”轰炸机在降落。(A B-52H Stratofortress takes flight during a Red Flag exercise July 17 at Nellis Air Force Base, Nev. Red Flag provides an opportunity for Air Force Global Strike Command units to demonstrate their ability to deploy long-range strike forces and deliver precision effects that strengthen the nuclear enterprise.)

美国内华达州内利斯空军基地，红旗 2012 联合空战演习，路易斯安那州巴克斯代尔空军基地第2轰炸机联队的 B-52H“同温层堡垒”轰炸机在停机坪。(A B-52H Stratofortress from the 2nd Bomb Wing, Barksdale Air Force Base, La., is parked on the ramp during Exercise Red Flag, March 3, 2012. Exercise Red Flag trains pilots from the U.S., NATO and other allied countries for realistic combat scenarios. The B-52 performs a dual-role mission, nuclear and conventional, providing a rapid global strike capability and ability to reach hardened and buried targets anywhere and at anytime.)

美国内华达州内利斯空军基地，红旗 2011 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”轰炸机出动。(A B-52H Stratofortress from the 96th Bomb Squadron, Barksdale Air Force Base, La., flies a sortie Feb. 1 during Exercise Red Flag at Nellis AFB, Nev. The purpose of Exercise Red Flag is to train pilots from the U.S., NATO and other allied countries for realistic combat scenarios. This includes the use of live ammunition for bombing exercises within the Nevada Test and Training Range.)

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.)