A mission that was kept secret for years but that undoubtedly saved lives. The Ghost Army had a huge impact on the war and they trained right here in Middle Tennessee.

The Army's secret military intelligence program at Fort Hunt in Alexandria, Virginia, was referred to only as P.O. Box 1142. (Image from YouTube video) ...

The team that worked in the secret installation outside of London is credited not only with cracking Enigma, but also the Lorenz, another device that the Nazi high command used to send coded messages.