Keywords: 110127-F-3074W-114 (5409694460).jpg U S Air Force F-15 Strike Eagle aircraft fly in formation off the wingtip of a KC-135 Stratotanker aircraft after refueling over Nellis Air Force Base Nev Jan 27 2011 during Red Flag 11-2 Red Flag is a combined exercise that provides a realistic combat training environment to the U S and its allies DoD photo by Staff Sgt Benjamin Wilson U S Air Force/Released https //www flickr com/photos/39955793 N07/5409694460/ 110127-F-3074W-114 2011-01-27 21 45 https //www flickr com/people/39955793 N07 U S Department of Defense Current Photos PD-USGov U S Department of Defense Current Photos https //flickr com/photos/39955793 N07/5409694460 2016-09-03 15 33 33 United States Government Work Red Flag 11-2 McDonnell Douglas F-15 Eagle Boeing KC-135 Stratotanker |