Heinrich Luitpold Himmler (German: [ˈhaɪnʁɪç ˈluːɪtpɔlt ˈhɪmlɐ] ; 7 October 1900 – 23 May 1945) was a German Nazi politician and military leader. He was the 4th Reichsführer of the Schutzstaffel (Protection Squadron; SS), a leading member of the Nazi Party, and one of the most powerful figures in Nazi Germany. He was also one of the main architects of the Holocaust.
After serving in a reserve battalion during World War I without seeing combat, Himmler went on to join the Nazi Party in 1923. In 1925, he joined the SS, which was initially a small paramilitary arm of the Nazi Party that served as a bodyguard unit for Adolf Hitler. Himmler rose steadily through the SS's ranks to become Reichsführer-SS by 1929. Under Himmler's leadership, the SS grew from a 290-man battalion into one of the most powerful institutions in Nazi Germany. Over the course of his career, Himmler acquired a reputation for good organisational skills and for selecting highly competent subordinates, such as Reinhard Heydrich. From 1943 onwards, he was both Chief of the Kriminalpolizei (Criminal Police) and Minister of the Interior, which gave him oversight of all police and security forces (including the Gestapo). He also controlled the Waffen-SS, a branch of the SS that served in combat alongside the Wehrmacht (Germany's armed forces) in World War II.
