When Kim was testing and shooting rockets, building his arsenal, the Russians and Chinese had no problem with him having nukes. On their border.
Now that President Donald Trump has ended the Korean Conflict, I think a whole new tact need be followed. Let’s build up the new North. Show Kim the beauty of Capitalism. Let him grow his security as his countrymen get jobs, ability to feed their families, get healthy. Possibly a joint leadership deal with Moon over the rebuilding of a prosperous economy, helping the farmers in the four lowland areas modernize for efficiency and turn the mountains into the ski resorts of the world. Help them capitalize on their vast mineral rights.
Over a few years, as Moon, Kim and President Trump solidify their relationships and become secure in their safety, bring the new Korea into NATO. Their people know what communism did to them. After a few years of freedom and capitalism, they will never go back.
Whether they get into NATO or not, we could make treaties with Korea, similar to Taiwan. AND leave a free, America friendly, semi-capitalist nuclear armed country on the Russia/Chinese border.
I don’t see why that shouldn’t be an option. President Trump is reorganizing the world stage, without bullets.