From what i understood so far,
there are 8,000 marines on the eisenhower(aircraft carrier)And U.S Special forces are arleady deployed in Jordan,add to that Israeli sf's.
But still,a dangerous situation.
They just said on the Israeli news that Assad arleady used CW but very limited use,only a street or so. The biggest concern is that the hezzies will get control on the CW's.