N Korea and US ends up doing this

[Vanilla]

@2348z - Military Alliances - South Korea is allied with the US, which is also why the US have already sent some aircraft carriers. On the other hand, you have North Korea, which is an old ally of China. So if either attacks one another, they are diplomatically bound to help one another. But neither China nor the US wants to have a war, because, unlike the Iraq war, there is nothing to gain, but much to loose, economically.