The 1st Panzer-Division (short: 1. Pz.Div. , English: 1st Tank Division) was an armoured division in the German Army during World War II. The division was one of the original three tank divisions established by Germany in 1935. It took part in pre-war occupations of Austria and Czechoslovakia and the invasions of Poland in 1939 and Belgium and France in 1940. From 1941 to 1945, it fought on the Eastern Front, except for a period in 1943 when it was sent for refitting to France and Greece. At the end of the war, the division surrendered to US forces in Bavaria. History The 1st Panzer Division was formed on 15 October 1935 from the 3rd Cavalry Division, and was headquartered in Weimar. It was one of three tank divisions created at the time, the other two being the 2nd and 3rd Panzer Division. Earlier in the year, Germany had renounced the Treaty of Versailles, which had forbidden the country, among other things, from having tank forces, a treaty Germany had violated almost from the start by secretly developing tanks and operating a covert tank school in the Soviet Union. Initially, the division consisted of two panzer regiments organized into a brigade, a motorized infantry brigade, a reconnaissance battalion, a divisional artillery regiment, and supporting ancillary formations. The division was equipped with the sub-standard light Panzer I and Panzer II, with the more powerful Panzer III arriving in late 1936. While the Pz I saw service in large numbers in Poland in 1939, the division was still using its Panzer II's in 1941. In 1938, the division participated in the Anschluss of Austria and the occupation of the Sudetenland in 1938 and the subsequent invasion of Czechoslovakia in 1939. In September 1939, the 1st Panzer Division took part in the invasion of Poland, reaching the outskirts of Warsaw after eight days. After Warsaw the division was moved to support the 18th Infantry Division before returning to Germany in November 1939, after the Polish surrender. In May 1940, the 1st Panzer Division was part of the invasion of France, Luxembourg and Belgium. It took part in the battles of Sedan and Dunkirk before swinging south to participate in the attack on the Weygand Line. It advanced towards the Swiss border and occupied Belfort before the surrender of France. During the battle of France, the division suffered relatively low casualties, having just under