The Russkiis can't move shit into Syria without going through Turkey, or through Iran and then Iraq , so I expect ISIS is perfectly safe from the Pootster as the geography stands now. If they did, though, it'd end up humiliating Obozo and Hitlery, and infuriating McCain and Graham, since Bashir Assad is a huge Russian client, and Putin's first order of business would be to crush the shit out of ALL the Syrian insurgents and restore the Ba'athists to a very firm grip on power.