Actually, Syria and Iran have a possitive working relationship. Now, that isn't to say that if the the US and much of Europe were to fall off the face Earth they might not be looking to stab eachother in the back, right now, they are very cozy with each, to the point of exchange programs for their war colleges and no-visa-needed for visiting.

Not as strong a connection as the US and most of NATO or Japan, but similiar to say US and the Saudis or the French. They do have mutual defense treaties- I guess that many US troops in Iraq sorta spooked them. Oh, the stuff the western media (US AND Europe) just sorta glossed over about 20, 24 months ago.