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The USA currently has two Nimitz class aircraft carriers off the coast of North Korea, and they're just waiting for the Little Fat Man to make one wrong move, with or without his bad haircut.
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Both the USS Nimitz and the USS Ronald Reagan are accompanied by two nuclear submarines (capable of launching nuclear ballistic missiles) and several destroyers along with other support ships. Aircraft carriers never travel alone.
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There is even a third carrier available not too far away if it becomes necessary to join up.
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All told there are hundreds of cruise missiles, several squadrons of F-22 jets, and light bombers loaded and ready to go at a moment's notice.
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