On Wednesday, after conducting its longest-range missile test yet, North Korea declared itself a globe-spanning nuclear-weapons power and insisted the United States deal with it on those terms. Kim Jong Un’s government claimed that it had launched a new type of intercontinental ballistic missile (ICBM)—a “Hwasong-15”—capable of “carrying [a] super-heavy [nuclear] warhead and hitting the whole mainland of the U.S.” It quoted the Dear Leader, who announced that his nation had “finally realized the great historic cause of completing the state nuclear force.”