Too sad that this specific group in the article joined Peshmerga instead of the Iraqi army. But it is nice they defend themselves along with the Muslims. But I do not agree with the article portraying "IS" members as sunnis. Nope, they are wahabi-salafi mix group. Even moderate wahabis-salafis disassociate with them. And the article again speaks of Kurds as if they have no religion. As a Kurd, I know that Kurds are mainly sunnis, but sadly most of the Kurds are led by fake leaders.
As for your question, I don't think the world Christians will join protect their fellows in Iraq. Rather they sadly join in the invasions. In any case, should a Christian want to act protect his Iraqi fellows, he should join the Iraqi army and not some other groups. Because, such help to seperate groups may end up in forming other uncontrollable terrorist organizations in the future.
