The 11th Armoured Division, known as The Black Bull, was a British Army division formed in 1941 during the Second World War. The Division was formed in response to the unanticipated success of German panzer divisions. It was responsible for several major victories in Normandy after D-Day, and it participated in the rapid advance across France, Belgium, and the Netherlands and the Rhine crossing. The Division was disbanded in January 1946 and reformed towards the end of 1950. In 1956, it was converted into the 4th Infantry Division.