Posted: 02/01/2015
An F-15D Eagle takes off Feb. 2, 2015, during Red Flag 15-1 at Nellis Air Force Base, Nev. Flying units from around the world come to Nellis AFB to participate in Red Flag exercises, which are held three to four times per year. The F-15D is assigned to the 493rd Fighter Squadron, Royal Air Force Lakenheath, England. (U.S. Air Force photo/Tech. Sgt. Eric Burks)