It was a political stunt. We deconflicted with Russian and Iran meaning we advised them (but the military is quick to say that is not the same thing as "cooperating" with them. We hit former command and control sites and didn't target any of Syria's leaders including Generals. It should be noted the timing of this occurred within hours of revelations that Mueller has the evidence Trump's right hand man Cohen was in fact in Prague (presumably colluding with Putin's people).