Well, considering they are there at the invitation of the Syrian government...and we are there with no US Congressional authorization, no UN security council authorization, no nothing. Just one day we decided to invade Syria.
Our position is weak morally and legally. But we have firepower so we get away with it.
[Well, considering they are there at the invitation of the Syrian government]
Our motivation is not to take Syria.
It is a combination of things. Primarily loyalty to allies in the region. Israel for one. But others.
Iran and Syria are both terrorist sponsor states and both hate Israel and the West.
We fought alongside many in Syria who helped us Defeat ISIS. That has not brought them the respect they should have in the Region, largely because Turkey supports and supported ISIS and other Jihadi Terrorists.
Right now, our Jeffrey is sucking up to Turkey. Erdoo is not to ever be believed. He hates anything that stands in the way of his expansion. (Neo-Ottoman dreams)