Staff Sgt. Alicia Parks, 379th Expeditionary Medical Group non-commissioned officer in-charge patient administration, sings the National Anthem during the 9/11 Memorial Ceremony at Al Udeid Air Base, Qatar, on Sept. 11, 2019. The ceremony was held to honor the lives lost during the Sept. 11, 2001 terrorist attacks. The attacks took the lives of 2,977 innocent people at the World Trade Center, Shanksville, Penn., and the Pentagon. (U.S. Air Force photo by Staff Sgt. Ashley L. Gardner)