Russia and China showcased their deepening ties Wednesday in meetings others are watching for signs that Beijing might offer the Kremlin stronger support for its war in Ukraine. The visit by Wang Yi, the Chinese Communist Party’s most senior foreign policy official, to Moscow comes as the conflict in Ukraine continues to upend the global diplomatic order. Relations between Russia and the West are at their lowest point since the Cold War, and ties between China and the U.S. are also under serious strain.