Ouch.
That is why I am not becoming dove on NK but no longer exactly a hawk either.
The window for a military solution (pre-emptive first strike followed by regime change and military occupation) is either closed or rapidly closing. The cost is too high in casualties, the military mission risky of expansion involving the PRC and the best outcome is a long term occupation, trillion+ nation building process fraught with known and unknown problems. The conclusion of (occupation/rebuilding) is uncertain and the US is unlikely to ever be thanked for.
My humble conclusion is that in starting a new war with NK, there is nothing to be won so why start one. Not respond and win if attacked first but there is nothing to win in first strike.
I have no wish to see the NK people further enslaved and used cruelly by a despot and his evil cohorts but ultimately, given our values, the cost and the military facts of the situation, deposing him and company thru an offensive military solution is not a realistic option.
But tolerating the current and legacy situation is not an option either, just how to change that is the question hence my belief that it will take something completely different than what we have currently been thinking of for the past decades.
Credible conventional military deterrence in theater & Strategic Capability and Retaliation assured against aggression - couple that sword and shield to a new diplomatic effort that proposes partial unification, a formal peace treaty and a trade engagement plan. Everything has built up to a crescendo, the resolution needs to be something other than the first shot fired.