The creation of the 11th Armoured Division in March 1941 (which initially included the 29th and 30th Armoured brigades) was part of the British Army's answer to the success of the German Army's panzer divisions in the previous years. During the invasion of Poland in September 1939 then in Western Europe in the Netherlands, Belgium and France in mid-1940, the German armoured elements had clearly displayed new tactics and methods of fighting; the Allied Forces now had to address those developments in Europe.