The result of Adolf Hitler seizing control of the National Socialist German Workers Party (NSDAP, which later became known as 'NAZI') in 1919. The party became militant in the 1920's and was transformed into the sole political party in Germany in the 1930's. Hitler abused the trust of the German people and become the genocidal military dictator, Fuhrer and Chancellor, of the then-called Nazi Germany (Third Reich), which joined the Axis powers during World War II. The Allied forces, primarily composed of American, British, and Russian troops, crushed the Nazi military during a long war campaign. Hitler, realizing his defeat, committed suicide, which threw the Third Reich into disarray, and they surrendered soon after.
Hitler led the Third Reich until the Allied forces whooped the Nazis.