エーリヒ・ルーデンドルフ
Due to his liberal stance he came into conflict with the policies of the "Oberste Heeresleitung" (OHL – Supreme Army Command) supreme command under Paul von Hindenburg and Erich Ludendorff. He openly spoke against the resumption of the unrestricted submarine warfare in 1917, which provoked the declaration of war by the United States Congress on 6 April.