The article conveniently ignores that the two Koreas have totally unmatched conventional military power. If war breaks out (and may it never), South Korea can

The article conveniently ignores that the two Koreas have totally unmatched conventional military power. If war breaks out (and may it never), South Korea can steamroller through entire North Korea all the way up to the Chinese border, without any outside help. (Assuming China does not intervene.) Their powers are so unmatched, one or two nukes thrown into the mix will make little difference. (If anything, it will only make South Korean soldiers cry for vengeance.) North Korea still has tanks and planes built in the age of the Vietnamese War, for Christ's sake. Any kind of nuclear attack on South Korea, let alone US, is basically assisted suicide for Pyongyang.