U.S. Army Soldiers assigned to the U.S. Army Training and Doctrine Command run in formation to honor the Army Reserves’ 109th Birthday at Joint Base Langley-Eustis, Va., April 21, 2017. Army Reserve Soldiers have participated in every major war campaign, to include the Global War on Terrorism with approximately 218,000 reserve members being activated since 9/11. (U.S. Air Force photo/Airman 1st Class Kaylee Dubois)