美国空军第18入侵者中队（18AGRS）一架 F-16C 战斗机在“北部边缘-2009”联合演习中飞越太平洋阿拉斯加联合靶场。该演习是应对亚太地区危机的联合作战演习，几乎所有兵种都会参与其中。（EIELSON AIR FORCE BASE, Alaska -- An F-16 Aggressor flies over the Joint Pacific Alaska Range Complex during NORTHERN EDGE 2009, June 25. NE09 participants will practice tactics, techniques, and procedures associated with defensive counter-air, close air support, and personnel-recovery missions. The F-16 is assigned to the 18th Aggressor Squadron, Eielson AFB, Alaska.）

美国空军两架 F-22A“猛禽”战斗机在“北部边缘-2009”联合演习中等待空中加油。（Two U.S. Air Force F-22 Raptor jets wait to receive fuel as they fly alongside a KC-135 Stratotanker flown by pilots from the 168th Air Refueling Squadron during an aerial refueling mission over Alaska June 19, 2009. The mission is part of exercise Northern Edge, which prepares joint forces to respond to crises in the Asian Pacific region.）

北部边缘-2009 联合演习中，美国空军一架来自路易斯安那州巴克斯代尔空军基地的 B-52H 轰炸机在阿拉斯加州艾尔森空军基地降落。（A B-52 Stratofortress from Barksdale AFB, La. arrives at Eielson Air Force Base, Alaska, June 30, 2009 in support of Northern Edge 2009. Northern Edge is Alaska's largest military training excercise. The exercise is held over a two-week period, involving components from the Army, Marine, Navy, and Air Force.）

北部边缘-2009 联合演习中，美国空军一架来自路易斯安那州巴克斯代尔空军基地的 B-52H 轰炸机从阿拉斯加州艾尔森空军基地起飞执演。（EIELSON AIR FORCE BASE, Alaska -- A B-52H Stratofortress takes off from Eielson AFB during NORTHERN EDGE 2009, June 23. NE09 is one in a series of U.S. Pacific Command exercises that prepare joint forces to respond to crises in the region. The B-52 is assigned to Barksdale AFB, Louisiana.）

北部边缘-2009 联合演习中，美国空军一架来自路易斯安那州巴克斯代尔空军基地的 B-52H 轰炸机从阿拉斯加州艾尔森空军基地起飞执演。（EIELSON AIR FORCE BASE, Alaska -- A B-52H Stratofortress takes off from Eielson AFB during NORTHERN EDGE 2009, June 23. NE09 participants will practice tactics, techniques, and procedures associated with defensive counter-air, close air support, and personnel-recovery missions. The B-52 is assigned to Barksdale AFB, Louisiana.）

北部边缘-2009 联合演习中，美国空军第90战斗机中队（90FS）一架 F-22A 战斗机在埃尔门多夫空军基地向跑道滑行。（An F-22 Raptor stealth fighter from the 90th Fighter Squadron taxis to the runway June 17, 2009, during Exercise Northern Edge 09 at Elemendorf Air Force Base, Alaska. Northern Edge, Alaska largest military training exercise, prepares joint forces to respond to crises throughout the Asia-Pacific region.）

北部边缘-2009 联合演习中，美国空军第90战斗机中队（90FS）一架 F-22A 战斗机在埃尔门多夫空军基地滑行。（An F-22 Raptor stealth fighter from the 90th Fighter Squadron taxis to the runway June 17, 2009, during Exercise Northern Edge 09 at Elemendorf Air Force Base, Alaska. Northern Edge, Alaska largest military training exercise, prepares joint forces to respond to crises throughout the Asia-Pacific region.）

美国阿拉斯加州埃尔门多夫空军基地，北部边缘-2009 联合演习中，美国空军第90战斗机中队（90FS）飞行员在飞行前检查他的 F-22A 战斗机。（U.S. Air Force Lt. Col. John Hillyer conducts preflight checks on his F-22 Raptor stealth fighter June 17, 2009, during Exercise Northern Edge 09 at Elmendorf Air Force Base, Alaska. Northern Edge, Alaska's largest military training exercise, prepares joint forces to respond to crises throughout the Asia-Pacific region.）

美国阿拉斯加州埃尔门多夫空军基地，北部边缘-2009 联合演习中，美国空军第90战斗机中队（90FS）一架 F-22A 战斗机准备出动。（U.S. Air Force Lt. Col. John Hillyer prepares for a mission in the cockpit of his F-22 Raptor stealth fighter June 17, 2009, during Exercise Northern Edge 09 at Elmendorf Air Force Base, Alaska. Northern Edge, Alaska's largest military training exercise, prepares joint forces to respond to crises throughout the Asia-Pacific region.）

美国阿拉斯加州埃尔门多夫空军基地，北部边缘-2009 联合演习中，美国空军第422测试与评估中队（422TES）一架 F-22A 战斗机在跑道上滑行。（An F-22 Raptor stealth fighter from the 90th Fighter Squadron taxis to the runway June 17, 2009, during Exercise Northern Edge 09 at Elmendorf Air Force Base, Alaska. Northern Edge, Alaska largest military training exercise, prepares joint forces to respond to crises throughout the Asia-Pacific region.）