China has taken note of a move by the U.S. state of Virginia to require school textbooks to use both names used by South Korea and Japan for a body of water between them, Beijing's foreign ministry said Saturday. For decades, South Korea and Japan have locked horns over the name of the body of water, with Seoul calling it the "East Sea" while Tokyo uses the name "Sea of Japan." In a victory for ethnic Koreans in Virginia against high-profile lobbying by the Japanese Embassy in Washington, the U.S. state's Senate overwhelmingly passed a bill this week that will require textbooks to concurrently use East Sea and Sea of Japan to refer to the sea between the Korean Peninsula and Japan.