Ernst Julius Günther Röhm (28 November 1887 – 2 July 1934) was a German officer in the Bavarian Army and later an early Nazi leader. He was a co-founder of the Sturmabteilung ("Storm Battalion"; SA), the Nazi Party militia, and later was its commander. In 1934, as part of the Night of the Long Knives, he was executed on Adolf Hitler's orders as a potential rival.