Islamic State: What has Kobane battle taught us? -BBC

This came out just before the Kurds claimed to have retaken Kobane.

1. Kobane is not “strategically” important.
2. Both IS and the Pentagon chose to fight there for propaganda reasons.
3. Geography has been critical.
4. By concentrating in one area, IS gives its enemies the opportunity to kill them.
5. By distracting IS from the battle in western Iraq, it is in the coalition’s interest to keep Kobane going for as long as possible.