However you want to define it, the U.S. ,Russia, Iran and Sunni nations are fighting ISIS together

You can call it many things but in the end you have to realize, we are all fighting ISIS together as countries. Each country might be doing other things too the U.S. doesn't like. But, the one thing they all have in common is that they don't like ISIS the most.

However, then, what caused ISIS? Assad, Iran and Russia caused ISIS by preventing Sunnis from having any rights at all in Syria. This caused ISIS.

So, eliminating ISIS without helping the rights of Sunnis in Syria will not eliminate any of the causes of ISIS and likely will only create something worse than ISIS in the long run. This is the real problem here, not ISIS.

ISIS is an effect of an injustice to millions of Sunnis. Understanding this puts all this into some kind of perspective. So, how does the world correct the injustice to Sunnis in Syria?

Otherwise, eliminating ISIS even completely by all these nations will only in the end create something worse in the future. This is only logical.

However, it is also true that ISIS is a threat to EVERY government in the Middle East from Turkey to Afghanistan to Pakistan and Bangladesh. So, all the eyes of the governments of every middle Eastern nation will be trained on ISIS to destroy it.