Right now it would seem that the U.S. president has bigger fish to fry than Syria, which is best left to the Russians, who have a naval base there and aren't going to leave anytime soon. Their view is that replacing Assad with something worse would be unhelpful, certainly to the minorities such as the Christians and Alawites. The U.S. had its chance under Obama and flunked. It's not Mr. Trump's problem to solve, and certainly not Canada's.