air force

A ground controller guides a Royal Australian Air Force AP-3C Orion to rest after sunset upon its return from a search for the missing Malaysia Airlines flight MH370 over the Indian Ocean, at the Royal Australian Air Force base Pearce in Perth, Monday, March 24, 2014. Satellite images released by Australia and China had earlier identified possible debris in an area that may be linked to the disappearance of the flight on March 8 with 239 people aboard.

Jason Reed/AP

A ground controller guides a Royal Australian Air Force AP-3C Orion to rest in Perth after sunset upon its return from searching for the missing Malaysia Airlines flight MH370 over the Indian Ocean. Satellite images released by Australia and China had identified possible debris in an area where the flight may have disappeared on March 8 with 239 people aboard.

New South Korean military officers cheer during a joint commissioning ceremony for 5,860 new officers from the Army, Navy, Air Force and Marines at the military headquarters in Gyeryong...New South Korean military officers cheer during a joint commissioning ceremony for 5,860 new officers from the Army, Navy, Air Force and Marines at the military headquarters in Gyeryong, south of Seoul March 6, 2014. REUTERS/Jung Yeon-je/Pool (SOUTH KOREA - Tags: MILITARY)

Jung Yeon-je/Reuters

New South Korean military officers cheer during a joint commissioning ceremony for 5,860 officers from the army, navy, air force and marines at the military headquarters in Gyeryong, south of Seoul Read more

An aerial display of the Republic of Korea Air Force Black Eagles flying T-50 aircraft at a media preview of the Singapore Airshow at Changi Exhibition Centre in Singapore, 11 February 2014. The Singapore Airshow runs from 11 until 16 February 2014.

Tom White/EPA

An aerial display of the Republic of Korea Air Force Black Eagles flying T-50 aircraft at a media preview of the Singapore Airshow at Changi Exhibition Centre in Singapore on Tuesday.

Indian Air Force "Sarang" helicopter display team performs during the Indian Air Force Day celebrations at the Hindon air force station on the outskirts of New Delhi...Indian Air Force "Sarang" helicopter display team performs during the Indian Air Force Day celebrations at the Hindon air force station on the outskirts of New Delhi October 8, 2013. The IAF celebrated its 81st anniversary on Tuesday.

Anindito Mukherjee/Reuters

Indian Air Force Sarang helicopter display team performs during the Indian Air Force Day celebrations at the Hindon air force station on the outskirts of New Delhi. The IAF celebrated its 81st anniversary on Tuesday.

wiss air force helicopter transports mobile water pump during exercise in front of the nuclear power plant near Leibstadt...A Swiss air force helicopter transports a mobile water pump during an exercise in front of the nuclear power plant near the northern Swiss town Leibstadt May 28, 2013. The Swiss Federal Nuclear Safety Inspectorate (ENSI) tested, in co-operation with Swiss air force and the power plant operators, the transport of technical emergency equipment by air.   REUTERS/Arnd Wiegmann (

Arnd Wiegmann/Reuters

A Swiss Air Force helicopter on Tuesday transports a mobile water pump during an exercise in front of the nuclear power plant near the northern Swiss town Leibstadt. The Swiss Federal Nuclear Safety Inspectorate tested, in co-operation with the air force and the power plant operators, the transport of technical emergency equipment by air.