U.S. Air Force Col. David S. Miller, 377th Air Base Wing commander, stands in front of a Team Kirtland formation during a 9/11 retreat ceremony at Kirtland Air Force Base, N.M., Sept. 11, 2019. The retreat ceremony was held to honor and remember the nearly 3,000 people that died in the attacks on 9/11 and for those that have been killed in defense of the country since that day. (U.S. Air Force photo by Staff Sgt. Dylan Nuckolls/Released)