Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Japan Latest Nation to Contest Beijing's South China Sea Claims Radio Free Asia Japan has joined a growing list of countries that are challenging China's maritime claims in the South China Sea. On Tuesday, Japan presented a one-page diplomatic note to the United Nations rejecting China's baseline claims and denouncing its efforts to limit the freedom of navigation and overflight. Japan's note is the latest in series of recent criticisms of China's position, joining submissions to the U.N. from the United Kingdom, France, Germany, Malaysia, Australia, Indonesia, Vietnam, the Philippines, and the United States. .