North Korea’s recent criticisms against South Korea’s nuclear submarine plans and Japan’s consideration of non-nuclear policy revisions, coupled with its latest missile tests, are likely aimed at boosting ties with China and Russia and bolstering its nuclear narrative, experts said. They believe Pyongyang's recent actions were timed with the expected visit of Chinese Foreign Minister Wang Yi to Seoul, as early as next week. In a commentary released by Pyongyang's state-run news outlet Korean Central News Agency (KCNA) on Wednesday, Jang Kum-chol, first vice minister of North Korea's foreign ministry, criticized Seoul’s nuclear-powered submarine development plan with the United States, saying, "South Korea’s push to acquire nuclear-powered submarines will inevitably trigger a nuclear domino effect across the Asia-Pacific region." The criticism came three months after Seoul unveiled in May the Jang Bogo N Program, an initiative to develop around three 8,000-ton nuclear-powered submarines. A piece published by the KCNA on Wednesday attributed to international affairs commentator R