Within seven months, more than 600,000 Armenians were massacred. Of the 500,000 deported during that same period, more than 400,000 perished as a result of the brutalities and privations of the southward march into Syria and Mesopotamia. By September as many as a million Armenians were dead, the victims of what later became known as genocide, later still as ethnic cleansing. A further 200,000 were forcibly converted to Islam.