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Iran has no nuclear weapons and some Americans clamor daily for “regime change” in Tehran. But because Kim has nukes, the Americans appear more anxious to talk. His policy is succeeding.

What he is saying with his nuclear arsenal is: As you Americans have put my regime and country at risk of annihilation, I am going to put your cities at risk. If we go down in your nuclear “fire and fury,” so, too, will millions of Americans.

The whole world is watching how this plays out.

For the American Imperium, our system of alliances, is held together by a credible commitment: If you attack any of our scores of allies, you are at war with the United States.

From the Baltic to the Black Sea to the Persian Gulf, from the South China Sea to Korea and Japan today, the costs and the risks of maintaining the imperium are growing.

With all these promissory notes out there—guarantees to go to war for other nations—one is inevitably going to be called.

And this generation of Americans, unaware of what their grandfathers obligated them to do, will demand to know, as they did in Iraq and Afghanistan: What are we over doing there, on the other side of the world?

America First is more than a slogan.