Katrina Yu

The provided news articles discuss international relations and diplomatic meetings involving China, Russia, and Iran. Article 1 focuses on a joint declaration between Russian President Vladimir Putin and Chinese President Xi Jinping following their meeting in Beijing, emphasizing a "multipolar world." Article 2 details a meeting between Iran's Foreign Minister Abbas Araghchi and his Chinese counterpart, Wang Yi, in Beijing, occurring amidst tensions with the United States. Neither article mentions or provides any information about an individual named Katrina Yu. Therefore, based on the given snippets, no summary can be generated for Katrina Yu.