The Dover Air Force Base Honor Guard Presents the Colors in front of a 9/11 Memorial while taps is performed during the 24th Anniversary 9/11 Memorial Service at the Air Mobility Command Museum at Dover AFB, Delaware, Sept. 11, 2025. The 9/11 Memorial at the museum includes two pieces of steel from the World Trade Center, a rock from the United Airlines Flight 93 crash site and a block from the American Airlines Flight 77 crash site at the Pentagon. (U.S. Air Force photo by Airman 1st Class Liberty Matthews)