[W]hen we refer to all Kurdish fighters synonymously, we simply blur the fact that they have very different politics. . . right now, yes, the people are facing the Islamic State threat, so it’s very important to have a unified focus. But the truth is, ideologically and politically these are very, very different systems. Actually almost opposite to each other. —Dilar Dirik, ‘Rojava vs. the World,’ February 2015
The Kurds, who share ethnic and cultural similarities with Iranians and are mostly Muslim by religion (largely Sunni but with many minorities), have long struggled for self-determination.