missile only days after successfully detonating its most powerful nuclear weapon. north korea s state-run media claims kim jong-un s military is ready to, quote, blow up the u.s. main land and annihilate americans. let s check in with our pentagon krt barbara starr. barbara, how is the u.s. military responding? reporter: right now, wolf, nobody is engaging in very much cool, calm, collected talk about all of this. there s a lot of rhetoric from washington all the way to pyongyang. right now hard to see how this all ends. new live fire drills by south korea s navy as tensions continue to rise. several war ships sending a message to kim jong-un south korea will hit back against any provocation. president trump sending his own message, tweeting, i am allowing japan and south korea to buy a substantially increased amount of highly sophisticated military equipment from the united states.