Because they would shell Seoul and have nukes [0] and a successful rocket program to deliver them [1]... [0] https://en.wikipedia.org/wiki/North_Korea_and_weap

Because they would shell Seoul and have nukes [0] and a successful rocket program to deliver them [1]... [0] https://en.wikipedia.org/wiki/North_Korea_and_weapons_of_mass_destruction https://en.wikipedia.org/wiki/North_Korea_and_weapons_of_mas... [1] https://missilethreat.csis.org/country/dprk/ https://missilethreat.csis.org/country/dprk/ 10,000 km gets you to the west coast and significant parts of the western US, 13000 covers the whole of the US. NK has the Hwasong-15 with a nominal range of 15000 km...