One nuke is too much for this freak.  My point is that there is NO way we can confront this problem with aggression and not commit thousands/tens of thousands or more people to death.  North Korea likely has scores of missiles programmed for Seoul.  Any military provocation will result in launching these weapons and yes, WE would have blood on our hands because WE know this to be true.  
So what do we do?  China is what keeps North Korea functioning and we must exert political pressure on China to bring North Korea to its knees.  Starting off by claiming China is a currency manipulator (with no proof to back it) is not a good way to begin solving this problem.  We need people with experience, even temperament, and patience to handle this problem like an adult.  In other words, NOT anyone in Trump's administration.
The funny thing about this situation is that all experts agree that Trump is the unpredictable wildcard here, not Kim Jung Un.  His ability to BS is well known, but Trump's?