U.S. Army Soldiers from the 7th Transportation Brigade (Expeditionary) perform a streamer ceremony during the Army 242nd Birthday Music Under the Stars celebration at Joint Base Langley-Eustis, Va., June 15, 2017. Each of the 189 streamers represent a conflict the Army has fought in, from the Revolutionary War to today’s war on terror. (U.S. Air Force photo/Staff Sgt. Teresa J. Cleveland)