Army Command Sergeant Major John Wayne Troxell served as the Senior Enlisted Advisor to the Chairman of the Joint Chiefs of Staff, and the senior noncommissioned officer in the U.S. Armed Forces, from Dec. 11, 2015, until his retirement on Dec. 13, 2019. In this role, he served as the principal military advisor to the Chairman and the Secretary of Defense on all matters involving joint and combined total force integration, utilization, health of the force and joint development for enlisted personnel.   Get Troxell's book "Surrender or Die" on Amazon at   CSM Troxell enlisted in the U.S. Army in September 1982 as an armored reconnaissance specialist and graduated One Station Unit Training at Fort Knox, Ky.