An F-15 Eagle from the 142nd Fighter Wing, Oregon Air National Guard, Portland, Ore., flies alongside a KC-135 Stratotanker assigned to McConnell Air Force Base, Kan., July 23, 2013. The F-15 was one of eight to receive fuel from three McConnell tankers during the training mission over northeast Kansas. (U.S. Air Force photo/Senior Airman Laura L. Valentine)
An F-15 Eagle from the 142nd Fighter Wing, Oregon Air National Guard, Portland, Ore., receives fuel from a KC-135 Stratotanker assigned to McConnell Air Force Base, Kan., while a second F-15 moves to the left wing of the Stratotanker July 23, 2013. Three Stratotankers refueled eight F-15s during the training mission over northeast Kansas. (U.S. Air Force photo/Senior Airman Laura L. Valentine)