加拿大“枫叶旗-2014”空战演习中，美国空军五架 C-130H 战术运输机编队起飞。（U.S. Air Force C-130 Hercules aircraft take off during Maple Flag in Edmonton/Cold Lake, Alberta, Canada, June 02, 2014. Maple Flag is an international exercise designed to enhance the interoperability of C-130 aircrews, maintainers and support specialists in a simulated combat environment.）

加拿大“枫叶旗-2014”空战演习中，美国空军五架 C-130H 战术运输机编队起飞。（A U.S. Air Force C-130 Hercules aircraft takes off from the formation during Maple Flag in Edmonton/Cold Lake, Alberta, Canada, June 02, 2014. Maple Flag is an international exercise designed to enhance the interoperability of C-130 aircrews, maintainers and support specialists in a simulated combat environment.）

加拿大“枫叶旗-2014”空战演习中，美国空军五架 C-130H 战术运输机编队起飞。（A U.S. Air Force C-130 Hercules aircraft takes off from the formation during Maple Flag in Edmonton/Cold Lake, Alberta, Canada, June 02, 2014. Maple Flag is an international exercise designed to enhance the interoperability of C-130 aircrews, maintainers and support specialists in a simulated combat environment.）

加拿大“枫叶旗-2014”空战演习中，美国空军六架 C-130H 战术运输机编队起飞。（U.S. Air Force C-130 Hercules aircraft wait in formation to takeoff during Maple Flag in Edmonton/Cold Lake, Alberta, Canada, June 02, 2014. Maple Flag is an international exercise designed to enhance the interoperability of C-130 aircrews, maintainers and support specialists in a simulated combat environment.）

加拿大“枫叶旗-2014”空战演习中，美国空军第94空运联队的 C-130H 战术运输机在模拟规避地对空威胁。（A U.S. Air Force C-130 Hercules aircraft with the 94th Airlift Wing, Dobbins Air Reserve Station, Ga., maneuvers to avoid simulated ground-to-air threats during Maple Flag in Edmonton/Cold Lake, Alberta, Canada, June 2, 2014. Maple Flag is an international exercise designed to enhance the interoperability of C-130 aircrews, maintainers and support specialists in a simulated combat environment.）

加拿大“枫叶旗-2014”空战演习中，美国空军第94空运联队的 C-130H 战术运输机在模拟规避地对空威胁。（A U.S. Air Force C-130 Hercules aircraft with the 94th Airlift Wing, Dobbins Air Reserve Station, Ga., maneuvers to avoid simulated ground-to-air threats during Maple Flag in Edmonton/Cold Lake, Alberta, Canada, June 2, 2014. Maple Flag is an international exercise designed to enhance the interoperability of C-130 aircrews, maintainers and support specialists in a simulated combat environment.）

加拿大“枫叶旗-2014”空战演习中，美国空军第94空运联队的 C-130H 战术运输机在模拟规避地对空威胁。（A U.S. Air Force C-130 Hercules aircraft with the 94th Airlift Wing, Dobbins Air Reserve Station, Ga., maneuvers to avoid simulated ground-to-air threats during Maple Flag in Edmonton/Cold Lake, Alberta, Canada, June 2, 2014. Maple Flag is an international exercise designed to enhance the interoperability of C-130 aircrews, maintainers and support specialists in a simulated combat environment.）

加拿大“枫叶旗-2014”空战演习中，美国空军第94空运联队的 C-130H 战术运输机在模拟规避地对空威胁。（A U.S. Air Force C-130 Hercules aircraft with the 94th Airlift Wing, Dobbins Air Reserve Station, Ga., maneuvers to avoid simulated ground-to-air threats during Maple Flag in Edmonton/Cold Lake, Alberta, Canada, June 2, 2014. Maple Flag is an international exercise designed to enhance the interoperability of C-130 aircrews, maintainers and support specialists in a simulated combat environment.）

加拿大“枫叶旗-2014”空战演习中，美国空军第94空运联队的 C-130H 战术运输机在模拟规避地对空威胁。（A U.S. Air Force C-130 Hercules aircraft with the 94th Airlift Wing, Dobbins Air Reserve Station, Ga., maneuvers to avoid simulated ground-to-air threats during Maple Flag in Edmonton/Cold Lake, Alberta, Canada, June 2, 2014. Maple Flag is an international exercise designed to enhance the interoperability of C-130 aircrews, maintainers and support specialists in a simulated combat environment.）

加拿大“枫叶旗-2014”空战演习中，美国空军第94空运联队的 C-130H 战术运输机在模拟规避地对空威胁。（A U.S. Air Force C-130 Hercules aircraft with the 94th Airlift Wing, Dobbins Air Reserve Station, Ga., maneuvers to avoid simulated ground-to-air threats during Maple Flag in Edmonton/Cold Lake, Alberta, Canada, June 2, 2014. Maple Flag is an international exercise designed to enhance the interoperability of C-130 aircrews, maintainers and support specialists in a simulated combat environment.）