美国内华达州内利斯空军基地，红旗 11-3 联合空战演习，英国空军第9中队一架“狂风”GR4 战斗轰炸机起飞前往内华达试验和训练靶场执行演习任务。(A British Royal Air Force Tornado GR4 aircraft assigned to the No. 9 Squadron departs for a training mission over the Nevada Test and Training Range during Red Flag 11-3 at Nellis Air Force Base, Nev., March 10, 2011. Red Flag is an advanced aerial combat training exercise held four to six times a year to train pilots from the U.S., NATO and other allied countries for real combat situations.)

美国内华达州内利斯空军基地，红旗 11-3 联合空战演习，英国空军第9中队一架“狂风”GR4 战斗轰炸机正起飞前往内华达试验和训练靶场执行演习任务。(A British Royal air rorce Tornado GR4 takes off from the Nellis Air Force Base Runway during Red Flag 11-3 March 10. Red Flag is a realistic combat training exercise involving the air forces of the United States and its allies. The exercise is hosted north of Las Vegas on the Nevada Test and Training Range.)

美国内华达州内利斯空军基地，红旗 11-3 联合空战演习，英国空军第9中队一架“狂风”GR4 战斗轰炸机出动前往内华达试验和训练靶场执行演习任务。(A British Royal Air Force Tornado GR4 aircraft takes off for a training mission during Red Flag 11-3 at Nellis Air Force Base, Nev., March 10, 2011. Red Flag is an advanced aerial combat training exercise held four to six times a year to train pilots from the U.S., NATO and other allied countries for real combat situations.)

美国内华达州内利斯空军基地，红旗 11-3 联合空战演习，英国空军第9中队一架“狂风”GR4 战斗轰炸机出动前往内华达试验和训练靶场执行演习任务。(A British Royal Air Force Tornado GR4 aircraft assigned to the No. 9 Squadron departs for a training mission over the Nevada Test and Training Range during Red Flag 11-3 at Nellis Air Force Base, Nev., March 10, 2011. Red Flag is an advanced aerial combat training exercise held four to six times a year to train pilots from the U.S., NATO and other allied countries for real combat situations.)

美国内华达州内利斯空军基地，红旗 11-3 联合空战演习，英国空军第9中队的“狂风”GR4 战斗轰炸机完成演习任务后返回基地。(A British Royal Air Force Tornado GR4 aircraft returns from a flight during Red Flag 11-3 at Nellis Air Force Base, Nev., March 10, 2011. Red Flag is an advanced aerial combat training exercise held four to six times a year to train pilots from the U.S., NATO and other allied countries for real combat situations.)

美国内华达州内利斯空军基地，红旗 11-3 联合空战演习，英国空军第9中队的“狂风”GR4 战斗轰炸机起飞执行演习任务。(A British Royal Air Force Tornado GR4 aircraft takes off for a training mission during Red Flag 11-3 at Nellis Air Force Base, Nev., March 10, 2011. Red Flag is an advanced aerial combat training exercise held four to six times a year to train pilots from the U.S., NATO and other allied countries for real combat situations.)

美国内华达州内利斯空军基地，红旗 11-3 联合空战演习，英国空军第9中队的“狂风”GR4 战斗轰炸机起飞执行演习任务。(NELLIS AIR FORCE BASE, Nev., -- A Royal Air Force Tornado GR4 takes off from Nellis Air Force Base, Nev., for a training mission during Red Flag 11-3 March 10. Red Flag is a realistic combat training exercise involving the air forces of the United States and its allies. The exercise is hosted north of Las Vegas on the Nevada Test and Training Range.)

美国内华达州内利斯空军基地，红旗 11-3 联合空战演习，英国空军第9中队的“狂风”GR4 战斗轰炸机牵引返回机库。(British Royal Air Force maintainers assigned to No. 9 Squadron tow a Tornado GR4 aircraft back to the hangar during exercise Red Flag at Nellis Air Force Base, Nev., March 1, 2011. Red Flag is an advanced aerial combat training exercise held four to six times a year to train pilots from the U.S., NATO and other allied countries for real combat situations.)

美国内华达州内利斯空军基地，红旗 11-3 联合空战演习，英国空军第9中队“狂风”GR4 战斗轰炸机在检查维护。(British Royal air force Senior Aircraftsman Luke Howard, No. 9 Squadron, performs maintenance checks on Tornado GR4s during Red Flag 11-3, Nellis Air Force Base, Nev., March 1. Red Flag is a realistic combat training exercise involving the air forces of the United States and its allies. The exercise is hosted north of Las Vegas on the Nevada Test and Training Range.)

美国内华达州内利斯空军基地，红旗 11-3 联合空战演习，英国空军第9中队“狂风”GR4 战斗轰炸机在检查维护。(A British Royal Air Force maintainer assigned to No. 9 Squadron performs maintenance checks on a Tornado GR4 aircraft during exercise Red Flag at Nellis Air Force Base, Nev., March 1, 2011. Red Flag is an advanced aerial combat training exercise held four to six times a year to train pilots from the U.S., NATO and other allied countries for real combat situations.)