Perhaps, but Syria was a client state of Russia, not the U.S. U.S. troops were never really welcome, while Russia troops had free reign. Assad was a Russia asset, and they had promised him, and Iran, that they would keep him in power.
correctomundo
Why were our troops ever in Syria?
We most certainly worked with the terrorists that formed ISIS and murdered the Christian population there, just like we've worked with new terrorists, who are also Christians as well as our "allies" the Kurds.
Apparently, none of that bothers you, though.
Trump, thankfully, wants us out of the Syrian hellhole, just like he did during his first term.