US flag at the Fire Training Tower at Tinker Air Force Base
Staff Sgt. Chase Blair carries the US flag during the 5th Annual Fire Climb Sept. 7, at the fire training tower at Tinker Air Force Base, Oklahoma.
Blair is a firefighter with the 507th Civil Engineer Squadron. Reservists from the CES and 507th ARW took turns carrying the flag up and down the equivalent of 110 stories to commemorate the 343 firefighters, emergency medical technicians and paramedics who lost their lives during the 9/11 attacks on the World Trade Centers.
(U.S. Air Force photo/Senior Airman Mark Hybers)