Turkish president, Recep Tayyip Erdogan said the Assad regime must be targeted. You cannot resolve this with just bombing Kobani. What do you want to do with the rest of Syria? Inaction in the rest of Syria would result in new Kobani situation in other places. Today it is Kobani, tomorrow it would be Aleppo, and the next day other cities. The root cause of all of these is Assad and he must go.