I see the Turkish and Arab closing in on Syria as a multilateral war effort, nothing more. Its purposes are not about saving the Syrian people (which people, exactly, we are not told) so much as fulfilling the desires of the state cliques involved.
It can be said, fairly, that this is also a coalition supported or enjoyed, at least, by the US clique. Some might think it a proxy action, though I might note that the Turks are in the doghouse, their hostility no longer pointed exclusively at those we consider disposable and hated.
In any case, to make this brief: I know that multipolarity will not end sorrow or tyranny or injustice. It may, however, bring it closer to our reach. Foederati appear at empire's close.