Send us a text Serving as the 12th Sergeant Major of the US Army from 2000 until his retirement in 2004, Jack Tilley shares wisdom gained from a 36-year Army career and the successful career he’s had since hanging up the uniform. While in the US Army, he held a variety of leadership roles including tank commander, drill sergeant and Command Sergeant Major. After his retirement, he founded the American Freedom Foundation, a 501(c)3 that supports veterans and their families. He is also a manage...