F-15C Eagles assigned to the 493rd Fighter Squadron, Royal Air Force Base, Lakenheath, England, taxi towards the runway moments before taking off to participate in a Red Flag 15-1 training sortie at Nellis Air Force Base, Nev., Feb. 4, 2015. The night operations aspects of Red Flag is crucial for aircrews looking to gain experience in low-light situations, giving U.S. and coalition Air Forces the strategic upper hand in current and future conflicts. (U.S. Air Force photo by Airman 1st Class Joshua Kleinholz)
An F-15 Eagle assigned to the 493rd Fighter Squadron, Royal Air Force Lakenheath, England, lands on the runway during Red Flag 15-1 at Nellis Air Force Base, Nev., Feb. 5, 2015. Red Flag provides combat training in a degraded and operationally-limited environment, making the training missions as realistic as possible. (U.S. Air Force photo by Staff Sgt. Siuta B. Ika)