Ash Carter: “He needs to come to the table in order to discuss his own receding from the scene in Syria.”

I can't support, and won't support, is anything that moves towards instability.

The goal of United States policy in Syria is to end the Syrian war--civil war.

China has and shares important responsibility for this development and has an important responsibility to reverse it.

What he's trying to do is exactly what you're calling attention to, namely to end the humanitarian disaster occasioned by the civil war in Syria.