北部边缘-2015 联合演习中，美国空军第4战斗机联队（北卡罗来纳州西摩·约翰逊空军基地，4FW）一架 F-15E 战斗轰炸机在艾尔森空军基地滑行，这是“北部边缘”演习4年之后再度举行，2013年由于财政紧缩停办了一届。（A U.S. Air Force F-15E Strike Eagle taxi’s down a flight line during Northern Edge 2015 June 15 at Eielson Air Force Base, Alaska. Northern Edge 2015 is Alaska’s premier joint training exercise designed to practice operations, techniques and procedures as well as enhance interoperability among the services. Thousands of airmen, soldiers, sailors, Marines and Coast Guardsmen from active duty, reserve and National Guard units are involved. The fighter is with the 335th Fighter Squadron, 4th Fighter Wing.）

北部边缘-2015 联合演习中，美国空军第4战斗机联队（北卡罗来纳州西摩·约翰逊空军基地，4FW）一架 F-15E 战斗轰炸机在艾尔森空军基地滑行，这是“北部边缘”演习4年之后再度举行，2013年由于财政紧缩停办了一届。（A U.S. Air Force F-15E Strike Eagle aircraft assigned to the 4th Fighter Wing, Seymour Johnson Air Force Base, North Carolina, taxis the flight line June 15, 2015, during Exercise Northern Edge 15 at Eielson Air Force Base, Alaska. Northern Edge 15 is Alaska’s premier joint training exercise designed to practice operations, techniques and procedures as well as enhance interoperability among the services. Thousands of participants from all the services, Airmen, Soldiers, Sailors, Marines and Coast Guardsmen from active duty, Reserve and National Guard units are involved.）

北部边缘-2015 联合演习中，美国空军第67战斗机中队（日本冲绳嘉手纳空军基地，67FS）一架 F-15C 战斗机从埃尔门多夫-理查德森联合基地起飞执演，这是“北部边缘”演习4年之后再度举行，2013年由于财政紧缩停办了一届。（A U.S. Air Force F-15C Eagle from the 67th Fighter Squadron at Kadena Air Base takes off during Exercise Northern Edge from Joint Base Elmendorf-Richardson, June 16, 2015. Northern Edge 2015 is Alaska’s premier joint training exercise designed to practice operations, techniques and procedures as well as enhance interoperability among the services. Thousands of participants from all the services; from active duty, Reserve and National Guard units are involved.）

北部边缘-2015 联合演习中，美国空军一架 F-16DM 战斗机从埃尔门多夫-理查德森联合基地起飞执演，这是“北部边缘”演习4年之后再度举行，2013年由于财政紧缩停办了一届。（A U.S. Air Force F-16 from, Eglin Air Force Base, Florida takes off during Exercise Northern Edge from Joint Base Elmendorf-Richardson, June 16, 2015. Northern Edge 2015 is Alaska’s premier joint training exercise designed to practice operations, techniques and procedures as well as enhance interoperability among the services. Thousands of participants from all the services; from active duty, Reserve and National Guard units are involved.）

北部边缘-2015 联合演习中，美国空军一架 F-15C 战斗机从埃尔门多夫-理查德森联合基地起飞执演，这是“北部边缘”演习4年之后再度举行，2013年由于财政紧缩停办了一届。（A U.S. Air Force F-15C Eagle takes off during Exercise Northern Edge from Joint Base Elmendorf-Richardson, June 16, 2015. Northern Edge 2015 is Alaska’s premier joint training exercise designed to practice operations, techniques and procedures as well as enhance interoperability among the services. Thousands of participants from all the services; from active duty, Reserve and National Guard units are involved.）

北部边缘-2015 联合演习中，美国空军第67战斗机中队（日本冲绳嘉手纳空军基地，67FS）一架 F-15C 战斗机从埃尔门多夫-理查德森联合基地起飞执演，这是“北部边缘”演习4年之后再度举行，2013年由于财政紧缩停办了一届。（A U.S. Air Force F-15C Eagle from the 67th Fighter Squadron at Kadena Air Base takes off during Exercise Northern Edge from Joint Base Elmendorf-Richardson, June 16, 2015. Northern Edge 2015 is Alaska’s premier joint training exercise designed to practice operations, techniques and procedures as well as enhance interoperability among the services. Thousands of participants from all the services; from active duty, Reserve and National Guard units are involved.）