It has certainly changed the blast doors on Assad's aircraft bunkers! It has also changed the Russian TV coverage of the Trump presidency.
Will it prevent more children being gassed? Well... if it hopefully does it's something that utter washout Obama could have done, before making a virtue out of not keeping his word. I seem to remember that the liberal left were behind Obama at every turn. If it pans out for the better then some would say that the woolly-minded lefties have "blood on their hands". Not me though, as I don't yet know. I only know that hand wringing, virtue signalling, lefty liberals create far more human and social problems than they ever address.