MCGHEE TYSON AIR NATIONAL GUARD BASE, Tenn. - Steel beams that help support the new classroom and dormitory facility at the I.G. Brown Training and Education Center rest prepositioned on trailers here March 23, 2015, in the student parking lot. Officials said they hope to erect initial steelwork in a few weeks. Construction began last August. (U.S. Air National Guard photo by Master Sgt. Jerry D. Harlan/Released)