Heinrich Himmler was the fourth leader of the SS, having obtained command in January 1929. He went on to become its longest and most influential leader. By the time he took over, it was made up of only 280 men. By 1933 Himmler had expanded its ranks to 52,000. | Heinrich Himmler was the fourth leader of the SS, having obtained command in January 1929. He went on to become its longest and most influential leader. By the time he took over, it was made up of only 280 men. By 1933 Himmler had expanded its ranks to 52,000. |