"by any means necessary"
anyway you look at it, nk and the us have no interest to initiate an attack anyways. guam, south korea and any other country that nk is angry at is of no strategic value. wasting an entire nuclear device that costs billions of dollars on a country just to prove a point is a horrible strategy.
none of the countries are in imminent danger of any sort of attack, though they are at risk of it. at this juncture funding an entire invasion against nk is also against american interest