That didn’t work, going on several decades now. North Korea is a rogue nation and out of control. It is a threat to other nations and is proliferating in WMDs to the highest bidder. It was allowed to do these things for a reason for years. But now the powers that be want to make an example of North Korea and also stop any threats against their long term plans.
Actually, putting a block on their bank accounts worked very well until Clinton and Bush took them off.
YOu threaten cutting off banking for NK, it will affect China also.
I don’t know what exactly Trump said the to Chinese Premier, but it got his attention.
If NK shoots off one of their missiles, and we shoot it down, it will put a stop to this boy king immediately.
Amazing how the threat of war, and standing up to bullies works.