After becoming Chancellor of Germany (head of government) in 1933, Adolf Hitler ignored the Versailles Treaty provisions. Within the Wehrmacht (established in 1935) the command for motorised armored forces was named the "Panzerwaffe" in 1936. The Luftwaffe (the German air force) was officially established in February 1935, and development began on ground-attack aircraft and doctrines. Hitler strongly supported this new strategy. He read Guderian's 1937 book "Achtung – Panzer!" and upon observing armoured field exercises at Kummersdorf he remarked, "That is what I want – and that is what I will have."