The fear of these tribes was annexation, and the hostility shown during the demarcation led to the Waziri expedition of 1894. Other causes, however, contributed to bring about the outbreak of 1897. The easy victory of the Turks over the Greeks in the Greco-Turkish War (1897) gave rise to excitement throughout the Muslim world, and the publication by the Amir of Afghanistan Abdur Rahman Khan, in his assumed capacity of king of Islam, of a religious work, in portions of which antipathy to Christians could be read, aroused militancy among the border Muslims.