Now, the arbitration, according to the accounts that I have looked at, say that they decide that neither Ali or Mawawiya should be caliph, and that it should be an election from the Muslim community. Now, Ali refuses this. And what's interesting about this is the accounts I've seen is that those same zealous folks who, you could say, instigated the Battle of Siffin and the Battle of the Camel during this Muslim civil war, they're no longer trusting Ali that he can protect them, that he is the strong leader they need. And so they are the ones that then decide to assassinate and are successful in assassinating Ali. So after the assassination of Ali, his son, Hassan, comes to power officially as the caliph, based in Kufa. But remember, you have this very powerful leader in Mawawiya with a very significant military, leading or in control of the Levant and the governor of Syria. And so they enter into a treaty.