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North Korean leader Kim Jong-un visited China on Saturday, arriving in the border city of Dandong via a newly opened bridge linking the two countries, according to a South Korean government source cited by Yonhap. The visit, his first to China in over a year, included a meeting with Beijing's top political adviser, and Kim said he hoped to expand cooperation with China, the Korea Times reports. The trip, made days before the anniversary of Chinese troops entering the 1950-53 Korean War, was aimed at reaffirming historic 'blood ties' between the two nations, according to a Korea Times cover story. An editorial in the Korea Times urges that Kim's visit 'must lead to restraint,' noting the peninsula's future cannot be understood through inter-Korean relations alone.