The United States has begun its joint military exercises with South Korea and Japan in response to North Korea’s recent intercontinental ballistic missile launch. Kim Jong Un’s sister responded, saying whether or not North Korea uses the Pacific Ocean as its “shooting range” depends on the United States. NBC News’ Meagan Fitzgerald has the latest on the major escalation. » Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Watch more NBC video: http://bit.ly/MoreNBCNews NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features NBCNews.com, MSNBC.com, TODAY.com, Nightly News, Meet the Press, Dateline, and the existing apps and digital extensions of these respective properties. We deliver the best in breaking news, live video coverage, original journalism and segments from your favorite NBC News Shows. Connect with NBC News Online! NBC News App: https://smart.link/5d0cd9df61b80 Breaking News Alerts: https://link.nbcnews.com/join/5cj/breaking-news-signup?cid=sm_npd_nn_yt_bn-clip_190621 Visit NBCNews.Com: http://nbcnews.to/ReadNBC Find NBC News on Facebook: http://nbcnews.to/LikeNBC Follow NBC News on Twitter: http://nbcnews.to/FollowNBC Get more of NBC News delivered to your inbox: nbcnews.com/newsletters #NorthKorea #Missile #Military