US Air Force/Aerial refueling / F-15C Eagle / F-22 Raptor

Aerial refueling
A German Luftwaffe Tornado disconnects from the boom of a KC-135 Stratotanker Oct. 14, 2014, over Germany. Since the beginning of fiscal year 2015, Airmen at Royal Air Force Station Mildenhall, England, have performed 62 air refueling missions. (U.S. Air Force photo by Airman 1st Class Dillon Johnston/Released)

Wings and Waves Air Show
The Thunderbirds perform the ‘Delta Opener’ during the Wings and Waves Air Show Oct. 12, 2014, at Daytona Beach, Fla. The Thunderbirds are the Air Force’s precision flying demonstration team. (U.S. Air Force photo by Tech. Sgt. Manuel J. Martinez/Released)

Push-up square
Airmen of the 20th Security Forces Squadron perform a four-man push-up in a puddle of mud during a Defender's Edge Challenge at Shaw Air Force Base, S.C., Oct. 8, 2014. The defenders completed a series of push-ups along with moving heavy objects during one of 10 obstacles they faced. (U.S. Air Force photo by Airman 1st Class Jensen Stidham/Released)

Sunrise
A C-130 Hercules from the 182nd Airlift Wing rests on the flightline at sunrise Oct. 8, 2014, in Peoria, Ill. The Illinois Air National Guard unit has been flying C-130s since 1995. (U.S. Air National Guard photo by Staff Sgt. Lealan Buehrer/Released)

Airshow maneuver
An F-22 Raptor demonstrates its maneuverability during the Wings Over the Pacific air show Sept. 28, 2014, at Joint Base Pearl Harbor-Hickam, Hawaii. The Raptor’s sophisticated aero design, advanced flight controls, thrust vectoring and high thrust-to-weight ratio provide the capability to outmaneuver all current and projected aircraft. (U.S. Air Force photo by Capt. Raymond Geoffroy/Released)

Exercise Valiant Shield
An F-15C Eagle takes off in front of B-52 Stratofortesses during Valiant Shield 2014 at Andersen Air Force Base, Guam, Sept. 16, 2014. Valiant Shield is a U.S.-only exercise, integrating Navy, Air Force, Army and Marine Corps assets and offering a real-world joint operational experience. (U.S. Air Force photo by Staff Sgt. William Banton/Released)