Four U.S. Air Force fighter jets practice for the inauguration flyover at Joint Base Langley-Eustis, Va., Jan. 19, 2017. The formation is comprised of two, fourth generation fighters (F-15 and F-16) along with two, fifth generation fighters (F-22 and F-35). (U.S. Air Force photo by Airman 1st Class Tristan Biese)