If he launches anything at all, it will amount to WWIII and a hard way of life for us in the world. A limited anything is not only a waste of time, it is most dangerous to our future and peace.
All we need to do is shut down the free money we have been handing out to these muslim haters of the US and everything we stand for. Let's start with that easy one. When all of the have to get up and make their own system produce food and good to live rather than just protesting and fighting everybody, this will help force peace to act.
If we launch one Tomahawk onto SYRIAN territory, that will open the channel for any and all SYRIAN allies to attack any and all US interest.