President Trump tweeted Friday that U.S. military plans are "locked and loaded" and ready to go “should North Korea act unwisely.” In fact, the Pentagon has had detailed plans in place for another conflict since the first Korean War ended in 1953.
https://www.usatoday.com/story/news/world/2017/08/11/north-korea-crisis-military-options-president-trump/559757001/