This is not the first time they ask for the protection:
Church leaders in Iraq have issued a statement demanding government action to end a campaign of violence against Christians in Mosul. A joint message from Catholic and Orthodox prelates calls attention to "a premeditated plan to place pressure on Christian Churches, to achieve a certain agenda." Decrying the failure of government officials to take effective action despite five execution-style murders within a week, the Church leaders said that the lack of security creates "the impression that we are unwanted in this city, which is our homeland."
It won’t be the last, I’m afraid.