Air Commandos assigned to the 24th Special Operations Wing load coolers of water and supplies onto trucks for the Special Tactics Memorial March Feb. 24, 2014, near Houston, Texas. The memorial ruck march honors Staff Sgt. Dylan Elchin, U.S. Air Force combat controller, who was killed in Afghanistan in November 2018, and 19 other special tactics Airmen who have died since 9/11. (U.S. Air Force photo by Senior Airman Ridge Shan)