The whole ideology of the “religion” of Islam is to - annihilate ALL other religions.
They did a pretty good number on the religion which held a great number of adherents before 634 A.D., the Zoroastrians of Persia. After a number of really bloody engagements, the entire Persian empire was forced to turn Islamic by 651 A.D. The few remaining Zoroastrians were forced to flee to India, where they survive as a very small minority today, the rest of the inhabitants of Persia either converted, were kept as slaves, or were slaughtered. One small minority in the area, the Kurds, really resisted the onslaught of the Arabic Muslims, and even today, the religion they practice, Yazidism, in many ways is much more like Zoroastrianism than any form of Islam. One of the reasons Kurds are such rough customers when any attempt by Muslims to attack them occurs. Militant Muslims, even ISIS, are almost deathly afraid of facing Kurds in a direct confrontation. And one of the reasons that Saddam Hussein used poison gas when he had confrontations with the Kurds in Iraq. Saddam would have lost a shooting war. Even the Turks are very cautious when anything about Kurds comes up, striking only from positions of VASTLY superior strength and rarely, if ever, a ground engagement.
It is in the shadow and under the protective arm of the Kurdish Yazidi that as many Christians of the region have survived at all. Christianity and Yazidism have a long history of mutual respect and assistance for each others’ culture and interdependence.
Remember that Islam comes from SATAN .