Kim Jong Un said North Korea is ready to mobilize its nuclear war deterrent and counter any U.S. military clash, and criticized South Korea's new president Yoon Suk-yeol for the first time, warning Seoul was pushing toward the brink of war. #News #Reuters #NorthKorea #KimJongUn #YoonSukYeol #NuclearTest Subscribe: http://smarturl.it/reuterssubscribe Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled. Get the latest news on: http://reuters.com/ Follow Reuters on Facebook: https://www.facebook.com/Reuters Follow Reuters on Twitter: https://twitter.com/Reuters Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en