thanks for being with us. >> great to see you. got a different major development in the battle against isis. kurdish forces claim they have retain the town of sinjar on a key highway linking the land controlled by isis in iraq and syria. the two-day assault backed by u.s.-led coalition air strikes. >> right now a kurdish flag flies over the city, so is the fight over there? is the city liberated? senior international correspondent nick paton walsh is on the phone with us. you've watched this fight unfold. you were there on the front lines watching it play out. is this town liberated, as kurdish leaders say? >> reporter: it's certainly no longer under the control of isis, that's for sure. entirely under the control of peshmerga? when we left four or five hours ago, that was unclear. during our time, about two hours, there were moments in which they were over our head and fairly chaotic reactions from the peshmerga who said two