Kim Yo Jong, the sister of North Korean leader Kim Jong Un, said North Korea will never back down on its status as a nuclear-armed state. SEOUL: Kim Yo Jong, the sister of North Korea n leader Kim Jong Un, said North Korea will never back down on its status as a nuclear-armed state, warning that it will not tolerate any threats, state media agency KCNA said on Sunday (Jun 7). Chinese ​President Xi Jinping is set to visit North Korea on Monday for a summit, marking his first visit to the North