Senior Airman Henry Dodd, 56th Civil Engineer Squadron Explosive Ordinance Disposal member, explains how one of the EOD robots works during a Retiree Appreciation Day event Oct. 20, 2018, at Luke Air Force Base, Ariz. A number of units from across base set up interactive demonstrations and exhibits to show retirees and their families how Luke trains the world’s greatest fighter pilots and combat ready Airmen. (U.S. Air Force photo by Airman 1st Class Zoie Rider)