Those “enemies” in caves are largely a boogie man, designed to frighten old people and suburban women. They’re dangerous, yes, but not to 99.99999% of the U.S. populace. They mostly exist on television.
A Moslem in the Middle East doesn’t threaten me here in North Carolina because I vacuum under my bed regularly.
Our most serious enemies dwell in skyscrapers, bid for politician’s favors and hold control of the levers of international credit and food supplies.
Cool, so large scale warfare and invasions and conquests are over, China is just wasting it’s money as it builds for a future that can’t happen according to you.