During his 37 year career , Harrison commanded companies in the 101st Airborne Division and the 7th Infantry Division , a battalion in 3rd Armored Division and a brigade in the 2nd Armored Division .
Harrison left the Army in 1957 and returned in 1959 .
During Harrison 's 37 year career , Harrison commanded companies in the 101st Airborne Division and the 7th Infantry Division , a battalion in 3rd Armored Division and a brigade in the 2nd Armored Division .
Harrison left the Army in 1957 and returned in 1959 .