Anyone who believes that this is actually going to work also believes in the tooth fairy, pixi dust and Santa Clause. There are so many contingencies and assumptions in this "agreement" it is simply bound to fail. As in Iraq and Afghanstan, the US has  been part of creating this deadly debacle and now the Russians have added to the horror. The idea that the US and Russia are now going to settle this proxy war somehow is just absurd. The dragons have been unleashed and the only way this carnage is going to end is for the US to withraw all support, go home with egg all over its face amd let Assad and Russia slaughter people until they establish control. Another sad story of American adventurism causing death and destruction in the world.