"Luther’s early writings concerning the threat of Islamdom focused more on the Ottoman Turks as a military threat to Europe rather than as ideological opponents.11In the late 1520s, Luther wrote two works specifically addressing the Ottoman Turks: On War against the Turk (1528) and Sermon against the Turk (1529). In both of these works, Luther implored the Emperor, the German princes, and the German people to defend the principalities against Suleiman, the Ottoman Sultan. In his 1528 On War against the Turk, Luther promotes a live–and–let–live policy. “Let the Turk believe and live as he will, just as one lets the papacy and other false Christians live”. In fact, Luther sounds outright amiable toward the Turks when he states, “It is said that the Turks are among themselves faithful and friendly, and careful to tell the truth. I believe and I think that they probably have more fine virtues than that”. In the following year, however, with the siege of Vienna and march on Hungary, Luther changed his tune."