Workers pump and finish a concrete floor slab during the early morning, July 24, 2019, for the billeting office under construction on McGhee Tyson Air National Guard Base in East Tennessee. The 2,400 square foot space will allow military students and guests to check in and out of lodging at the Air National Guard’s primary learning center, among others staying on the base. (U.S. Air National Guard photo/Master Sgt. Mike R. Smith)