Except Assad's days are numbered and Putin has been exposed as a paper-tiger.
The 'rebels' won't forget the nerve-gassing on the people by Putin and his puppet Assad either, they won't view Putin as a 'peacemaker' after they take over.
Why are Assad's days numbered? He is beating back the rebels and retaking territory. He has gotten away with using chem weapons and will do so again if he needs to. He has cemented a profitable relationship with the Russians getting advanced weapons from them.
How has Putin been exposed as a paper tiger? Unless "Putin" is some code name for Obama. Because Obama first declared a red line, then denied he said it, then said he would stage a strike, then said he would go to the UN and then said he isn't doing any of that.