The 319th Operations Group commemorates victims of the 2001 World Trade Center attacks by holding a stair climb event at the Air Traffic Control tower, Sept. 11, 2023, on Grand Forks Air Force Base, North Dakota. Grand Forks, North Dakota, police officers and firefighters participated in the event alongside airmen and civilians who work on base. (U.S. Air Force video created by U.S. Airman 1st Class Raisa Christie) More