I think the Bashar Assad regime is on a roll. I think it's got the backing of Russia and Iran and Hezbollah. And it's hard to see who is going to stand in their way in this steady fight against the insurgents.

The Syrian government is weak today in 2017, but it's been gathering strength. And I think it's likely that, in the next few years, you will see the Syrian government retake much of Syria.

It's quite clear the Syrian regime in Syria, as the Iraqi regime in Iraq is benefiting from America's effort to destroy opposition forces in both countries. And there aren't any other rebel forces that one can foresee on the horizon that will be able to take Eastern Syria that's now occupied by ISIS.