3major facts explaining how the us and north korea could start another cold war

Well, for starters, the U.S and the soviet union worked together as allies against the axis./ but even that was a tense partnership. after WW2, the soviet union broke the partnership, making the U.S try and "contain" the soviet union.  we won the fight, and after the soviet union aperrantly went broke after. i hope this info has helped.