If I were Emperor (EOTUS) and be glad I'm not, and it was up to me to retaliate against Syria, here's what I would do:
The chemical rockets were apparently fired from four military bases. I would send FIVE strikes. The four bases and Assad's Palace or White House or whatever it's called. Then five more just to make the rubble bounce because I could.
Then, after a decent interval to allow people's ears to stop ringing and let government agents swarm these places looking for survivors or whatever, five more strikes with chemical weapons, mustard gas, tear gas, shit plant residue, whatfuckinever, to render them uninhabitable for a long fucking time.
Then, just for shits and giggles, I'd find a very remote spot in Syria and blow off a nuke right in the middle of it. Sort of a "knock off the cheap shit" message.
Without too much provocation, I'd do the same thing in the more egregious red states too.
And I'm supposed to be a pussy peace/love/dope Liberal. Heh.
I know I'm gonna get suggestions. Let 'er rip!