301st Heavy Tank Battalion (United States) (original) (raw)

The 301st Heavy Tank Battalion of the American Expeditionary Forces (AEF) was a Heavy Tank unit during World War I. Of the eight heavy battalions (the 301st to 308th) raised, only the 301st saw combat. The 301st was reorganized post-war into the 66th Infantry Regiment (Light Tanks), later to become the 66th Armor Regiment, the oldest armored regiment in the United States Army.