Demobilization
During demobilization, the tank destroyer battalions were deemed surplus to the requirements of the post-war Army, and the 601st was no exception; it was inactivated on 18 October 1945. It was reformed in the Army Reserve in 1949 and designated the 332d Heavy Tank Battalion, then the 601st Tank Battalion. The battalion was activated in 2004 and designated as the 61st Cavalry Regiment, part of the Regular Army, which now maintains the lineage of the 601st.
Read more about this topic: 601st Tank Destroyer Battalion