Team Kirtland members from across the base participate in the 9/11 Memorial Ruck commemorating the 20th anniversary at Kirtland Air Force Base, New Mexico, Sept. 11, 2021. Many participants wore duty gear, or a 30-pound ruck during the march and completed 20 push-ups at Hardin Field to represent each year since the 9/11 attacks. (U.S. Air Force photo by Airman 1st Class Karissa Dick.)