Armenian Genocide

In the book Crescent and star: Turkey between Two Worlds, Stephen Kinzer describes several ethnic tensions that happen in turkey. One of those ethnic tensions that Kinzer discusses is Armenian tension, which is Armenian Genocide. It was a mass slaughter of Armenians during the World War one, carried out by the former Ottoman Empire.
Before Armenian Genocide, Armenians and Turks lived in harmony in the Ottoman Empire for centuries. During these times, although Armenians were not equal, they were pretty well accepted and relatively had no violent conflict. Things began to change for a couple of reasons. Nationalism, a new force in the world, which made ethnic grouping very important, and the Ottoman Empire began to have problems. Second, turkey was afraid of Christian crusade, and what made things worse is that Armenians became more isolated as the only major Christian minority.
World War one broke out, Ottoman Empire was fighting on the Axis side ...