Adolf Hitler (20 April 1889 – 30 April 1945) was an Austrian-born German politician who was the leader of the Nazi Party (NSDAP), Chancellor of Germany from 1933 to 1945, and Führer ("leader") of Nazi Germany from 1934 to 1945. He was effectively dictator of Nazi Germany, and was at the centre of World War II in Europe and the Holocaust. Hitler was a decorated veteran of World War I. He joined the precursor of the NSDAP, the German Workers' Party, in 1919 and became leader of the NSDAP in 1921. In 1923, he attempted a coup in Munich to seize power. The failed coup resulted in Hitler's imprisonment, during which time he dictated his autobiography and political manifesto Mein Kampf ("My Struggle"). After his release in 1924, Hitler gained popular support by attacking the Treaty of Versailles