BERLIN, GERMANY - AUGUST 17:  A woman shows a photograph as more then thousand participants of several oriental christian groups gather to protest against the ongoing violence against their brethren in Iraq and Syria by ISIS fighters on August 17, 2014 in Berlin, Germany. Tens of thousands of Yazidis, who practice their own religion and are neither Christian nor Muslim have fled targeted violence from ISIS Muslim Sunni fighters in the region of northern Iraq that borders Syria and Kurdish regions. ISIS has targeted Christians and Shia Muslims as well.  (Photo by Carsten Koall/Getty Images)