Adolf Hitler (20 April 1889 - 30 April 1945) was an Austrian-born German politician and the leader of the Nazi Party He was chancellor of Germany from 1933 to 1945. Hitler's aim was to establish a New Order of absolute Nazi German hegemony in continental Europe. He directed the rearmament of Germany and the invasion of Poland by the Wehrmacht in September 1939, resulting in the outbreak of World War II in Europe. Under Hitler's rule, in 1941 German forces and their European allies occupied most of Europe and North Africa. In 1943, Germany was forced onto the defensive and suffered a series of escalating defeats. Hitler's aggressive foreign policy is considered to be the primary cause of the outbreak of World War II in Europe. Under Hitler's leadership and racially motivated ideology, the regime was responsible for the genocide of at least 5.5 million Jews, and millions of other people whom he and his followers deemed racially inferior.