Fun fact: the US is technically still at war with Korea. The Korean war was never actually stopped...
But I do agree resuming hostilities would lead to unpredictable and undesirable outcomes.
Could you expand on this? Perhaps naively, I would expect the US & allies to be able to bomb all NK military assets and topple the inferior government easily & quickly. It wouldn't be another guerilla ground war, we just want to destroy their military capabilities.
I guess there is still the concern that China would back NK, but I can't see what China benefits from that. A war with other superpowers to protect a poor, weak, unpredictable regime?
North Korea has few enough nukes that first strike to take them out is possible. But would likely require using nukes. China, and much of the world, would not be happy. Acceptable if war has broken out, not to start a war.
Also helpful to collect intelligence.
Sending missiles toward Japan directly hurts the economy of Japan and its political stability (which in returns, has positive effects that the competitors of Japan can reap).
And that’s one of those “fun” facts we learn in school that as I grow older I increasingly question the veracity or usefulness of saying it. It’s unclear whether Korea and the DPRK are even at war with each other in any usefully understood manner; just that they view each other as illegitimate sovereigns occupying their territory in an official manner, much like China and the PRC.