According to biographer Heinz Höhne, Canaris subscribed to most of Hitler's views. Hitler's nationalism, his social-Darwinist beliefs, his opposition to the Versailles Treaty, his belief in rebuilding a Greater German Reich, and his anti-Semitic ideology appealed to the "Abwehr" chief. Prompted by anti-Semitism, Canaris first suggested the use of the Star of David to identify Jews during 1935–1936, setting them apart from German citizens within the Reich, heralding their isolation, presaging their compulsory resettlement, and ultimately leading to their physical annihilation.