On Tuesday, in front of several hundred military commanders gathered at a base in Virginia, some coming from as far away as Japan and South Korea, U.S. President Donald Trump unloaded a litany of partisan talking points — even disclosing that he had told his defense chief to use American cities as “training grounds” for the military.

But what may have been overlooked in his unprecedented speech, a diatribe that noted his long-held desire to send the military into what he says are crime-ridden — and often Democratic-led — U.S. cities, were his hints that his foreign policy was about to take an even sharper inward turn.

"Together with many of you in the room, we've brought back the fundamental principle that defending the homeland is the military's first and most important priority," Trump told the assembled commanders. "Only in recent decades did politicians somehow come to believe that our job is to police the far reaches of Kenya and Somalia while America is under invasion from within.”