The 2nd Armored was formed at Fort Benning, Georgia on 15 July 1940. It was originally commanded by Major General Charles L. Scott, with Colonel George S. Patton in charge of training. Scott was promoted to command the I Armored Corps in November of that year, which put Patton, now a brigadier general, in command of the division. The Division served with the First, Seventh, and Ninth Armies.
The 2nd Armored was organized as a "heavy" armored division, having two armored regiments of four medium tank and two light tank battalions of three companies each. Along with the 3rd Armored Division, it retained its organization throughout World War II - the 14 other U.S. armored divisions were reorganized as "light" armored divisions, having three tank battalions, each consisting of three medium tank companies and one light tank company. Both types had an infantry component of three mechanized battalions, although the heavy divisions maintained an "armored infantry regiment" organization.
The core units of the 2AD were the 41st Armored Infantry Regiment, the 66th Armored Regiment, the 67th Armor Regiment, the 17th Armored Engineer Battalion, the 82nd Armored Reconnaissance Battalion, and the 142nd Armored Signal Company.
The 2nd Armored had three artillery battalions: (the 14th, 78th, and 92nd). The Division also had support units, including the 2nd Ordnance Maintenance Battalion, a Supply Battalion, the 48th Armored Medical Battalion, and a Band and Military Police Platoon. The Military Police and Band were tasked with headquarters defense of base operations under the banner of the 502d Adjutant General Company (502d AG).
The division then landed in Normandy on 9 June 1944 under the command of then Major General Edward H. Brooks, operated in the Cotentin Peninsula and later formed the right flank of the Operation Cobra assault. It blunted the German attack on Avranches, then raced across France with the rest of the Third Army, reaching the Albert Canal in Belgium on 8 September. It crossed the German border near Sittard, 18 September to take up defensive positions near Geilenkirchen. On 3 October, the division launched an attack on the Siegfried Line from Marienberg, broke through, crossed the Wurm River and seized Puffendorf 16 November and Barmen 28 November.
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