Xi Jinping has arrived in North Korea for a rare summit with Kim Jong-un, his first visit since 2019. The meeting underscores the deepening ties between China and North Korea, as both leaders are expected to discuss relations with Washington and nuclear weapons. Kim's sister, Kim Yo-jong, has publicly ridiculed U.S. hopes for a nuclear deal, asserting that North Korea's nuclear ambitions are non-negotiable. She emphasized that the regime's commitment to enhancing its nuclear deterrent is an irreversible decision. This summit comes amid increasing speculation that Xi may be seeking to pull North Korea away from its growing ties with Russia, especially as Kim has sent troops to support Russia in Ukraine. Earlier this year, North Korea enshrined its nuclear weapons program in its constitution, further solidifying its stance against U.S. denuclearization efforts. This visit follows a series of diplomatic engagements for Xi, including meetings with Donald Trump and Vladimir Putin, highlighting a potential shift in global alliances.