evidence: In the days after the PRC’s release of its 2023 map, Russia rejected Beijing’s claim to all of Bolshoi Ussuriysky Island, reported Newsweek magazine. The island, known as Heixiazi, or Black Bear, in Chinese, sits at the confluence of two border rivers, the Ussuri and Amur. After more than a century of territorial dispute, Russia ceded roughly half of the island to the PRC in 2008. Moscow also abandoned its army base there and handed over nearby Tarabarov Island. The PRC agreed in return not to claim more territory from Russia, according to Newsweek.