How can Trump make the decision unilaterally?

How is it that this guy and the Pentagon went along with him and moved the troops so quickly?

Doesn't this require some Congress action?

He is the Commander in Chief. Congress has nothing to do with where troops are deployed, except to pass a law withholding funds if they are sent somewhere Congress doesn’t want.

a funkhole to escape to now that impeachment looks like it will happen. Destroying NATO is the quid pro quo.

We can rebuild our relationships later. There is honor to be had.

First, I want Americans out alive. They completed their mission, that is honorable. Those on the battlefield don’t care about politics, they care about the mission and each other. Trump has screwed our relationships worldwide. We will mend.

they are DESPERATELY needed.

Now i do fear for the nuclear button.

"Esper said that the conflict between Turkish forces and U.S.-backed Syrian Kurdish fighters had become "untenable" for the U.S. military."

It became untenable because President Numbnuts gave the green light to Erdogan to invade.