e.Other Arabs here resent that the Kurds were slow to join the insurgency against the regime, preferring to sit it out. Even now, the YPG co-exists with a substantial contingent of Syrian soldiers inside Hasakah city. "We have nothing to do with them, though sometimes we have an agreement not to encroach on an area," Commander Lawand told CNN inside the YPG's bombed headquarters. "We are the real opposition to the regime, but first we must fight the terror groups."That's just what the U.S. wants to hear. In the wake of its failed efforts to train and equip moderate rebel groups elsewhere in Syria, there is a lot riding on the Kurds and their Arab allies. American airstrikes were instrumental in helping the Kurds save the city of Kobani on the Turkish border and then pushing ISIS back. In a country of shifting alliances, it's a proven partnership.