I trust Trump about as far as I can throw him, and at the end of the day it's really the Pentagon calling the shots here not the POTUS.
But dudes clearly speaking to a public sentiment here.
There's a long-standing thread of American thought that would get you a long ways towards anti-imperialism: "we shouldn't send troops to die in a country most Americans can't find on a map." Could get a little farther with "we should not be paying for death and destruction across the globe."