It is estimated that one and a half million Armenians perished between 1915 and 1923. There were an estimated two million Armenians living in the Ottoman Empire on the eve of W.W.I. Well over a million were deported in 1915. Hundreds of thousands were butchered outright. Many others died of starvation, exhaustion, and epidemics which ravaged the concentration camps.
Among the Armenians living along the periphery of the Ottoman Empire many at first escaped the fate of their countrymen in the central provinces of Turkey. Tens of thousands in the east fled to the Russian border to lead a precarious existence as refugees.
The majority of the Armenians in Constantinople, the capital city, were spared deportation. In 1918, however, the Young Turk regime took the war into the Caucasus, where approximately 1,800,000 Armenians lived under Russian dominion. Ottoman forces advancing through East Armenia and Azerbaijan here too engaged in systematic massacres.
The expulsions and massacres carried by the Nationalist Turks between 1920 and 1922 added tens of thousands of more victims. By 1923 the entire landmass of Asia Minor and historic West Armenia had been expunged of its Armenian population. The destruction of the Armenian communities in this part of the world was total.