International Coalition against ISIS – Can Common Evil Unite Us?

It is theater shared by two parallel coalitions, i.e. the United States and Europe on the one side, and Russia, Iran and Syria on the other This September, President Vladimir Putin has, on several occasions including during the Collective Security Treaty Organization summit, voiced Russia's readiness to act against the ISIS as part of a broad coalition incorporating countries in the West and the Middle East. This prompts some questions. What does a broad coalition mean in this context? Does Russia...