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480战斗机中队（德国斯潘达勒姆空军基地，480FS）一架 F-16CM 战斗机在跑道上待命。(A U.S. Air Force F-16 Fighting Falcon aircraft assigned to the 480th Fighter Squadron, Spangdahlem Air Base, Germany, sits at the end of the runway at Nellis Air Force Base, Nev., Feb. 2, 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 联合空战演习中，美国空军第480战斗机中队（德国斯潘达勒姆空军基地，480FS）一架 F-16CM 战斗机进行夜航预检。(U.S. Airmen with the 480th Air Maintenance Squadron, Spangdahlem Air Force Base, Germany, conduct final preflight checks on an F-16 Fighting Falcon aircraft at Nellis Air Force Base, Nev., Feb. 2, 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 联合空战演习中，美国空军第480战斗机中队（德国斯潘达勒姆空军基地，480FS）一架 F-16CM 战斗机在滑行开始夜航。(A U.S. Air Force F-16 Fighting Falcon aircraft assigned to the 480th Fighter Squadron, Spangdahlem Air Base, Germany, prepares to taxi out at Nellis Air Force Base, Nev., Feb. 2, 2011, Feb. 2, 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 联合空战演习中，美国空军一架 F-16CM 战斗机飞行在 KC-135 加油机的右侧。(NELLIS AIR FORCE BASE, Nev. -- An F-16 Fighting Falcon departs from the side of a KC-135 Stratotanker after refueling during Red Flag 11-2 Jan. 27. Red Flag is a combined exercise that provides a realistic combat training environment to the U.S. and its allies.)

美国内华达州内利斯空军基地，红旗 11-3 联合空战演习中，美国空军第965机载空中管制中队（俄克拉荷马州廷克空军基地，965AACS）一架 E-3B 预警机完成演习任务后返回基地正在降落。(A U.S. Air Force E-3 Airborne Warning and Control System aircraft, 965th Airborne Air Control Squadron, Tinker Air Force Base, Okla., returns from a training mission over the Nevada Test and Training Range during Red Flag 11-3 at Nellis Air Force Base, Nev., 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 联合空战演习中，美国空军第965机载空中管制中队（俄克拉荷马州廷克空军基地，965AACS）一架 E-3B 预警机完成演习任务后返回基地准备降落。(A U.S. Air Force E-3 Airborne Warning and Control System aircraft, 965th Airborne Air Control Squadron, Tinker Air Force Base, Okla., returns from a training mission over the Nevada Test and Training Range during Red Flag 11-3 at Nellis Air Force Base, Nev., 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 11-2 联合空战演习中，美国空军第965机载空中管制中队（俄克拉荷马州廷克空军基地，965AACS）一架 E-3B 预警机起飞执演。(A U.S. Air Force E-3 Sentry aircraft assigned to the 965th Airborne Air Control Squadron, Tinker Air Force Base, Okla., 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 联合空战演习中，美国空军第965机载空中管制中队（俄克拉荷马州廷克空军基地，965AACS）一架 E-3B 预警机起飞执演。(A U.S. Air Force E-3 Sentry aircraft assigned to the 965th Airborne Air Control Squadron, Tinker Air Force Base, Okla., 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 11-3 联合空战演习中，美国空军第509轰炸机联队（密苏里州怀特曼空军基地，509BW）一架“路易斯安那幽灵”号 B-2A 隐形轰炸机正在起飞。（A U.S. Air Force B-2 Spirit bomber aircraft assigned to the 509th Bomb Wing 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 联合空战演习中，美国空军第509轰炸机联队（密苏里州怀特曼空军基地，509BW）“密西西比幽灵”号 B-2A 隐形轰炸机正在起飞。（A U.S. Air Force B-2 Spirit bomber, 509th Bomber Wing, Whiteman Air Force Base, Mo., departs for a training mission during Red Flag 11-3 at Nellis Air Force Base, Nev., March 8. 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.）