As an outspoken ally and advocate of Hitler and the Nazi Party, Reichenau soon ran afoul of cabinet member and eventual Chancellor Kurt von Schleicher, who used his authority to have him transferred out of his prestigious posting in Berlin to the headquarters of the military district of East Prussia, a relative backwater. In East Prussia Reichenau served under General Werner von Blomberg, a fellow exile of Schleicher's. Reichenau and Blomberg became political allies within the army and it was Reichenau who introduced Blomberg to Hitler. Blomberg, who had a reputation of being manipulated by Reichenau, was captivated by Hitler and both men soon used their connections with the Nazi party to advance. When Hitler came to power in January 1933, Blomberg became Minister of War. One of his first acts was to promote Reichenau to head the powerful Ministerial Office, acting as liaison officer between the Army and the Nazi Party. He played a leading role in persuading Nazi leaders such as Göring and Himmler that the power of Ernst Röhm and the SA must be broken if the army was to support the Nazi-led government. This led directly to the "Night of the Long Knives" of 30 June 1934.