Micheal J, Green, Sue Mi Terry, and Victor Cha write: Kim no doubt hopes that an eventual peace treaty with the United States can be used in the future to discredit the UN Command, [...]and possibly even lead to the withdrawal of U.S. troops from South Korea and the withdrawal of the U.S. nuclear umbrella over South Korea, ultimately resulting in the end of the U.S.-South Korea alliance. - Center for Strategic and International Studies
By Loren Thompson, Forbes: “U.S. nuclear strategy rests on a foundation of fear. Its core precept is that if adversaries know they cannot avoid retaliation, they will not attack. That is why Washington spends billions of dollars each year sustaining a strategic force no enemy can destroy in a surprise attack. It is the fear of what follows that deters nuclear aggression.”