Belau, Republic of, formerly Palau Self-governing island group in Micronesia; area 500 sq km/193 sq mi; population (1988) 14,000. It is part of the US Trust Territory, and became internally self-governing 1980. There are 26 larger islands (8 inhabited) and about 300 islets. Three referendums have shown that Belau wishes to remain `non-nuclear', although the USA is exerting strong pressure to secure nuclear facilities for itself. Spain held the islands from about 1600, and sold them to Germany 1899. Japan seized them in World War I, administered them by League of Nations mandate, and used them as a naval base during World War II. They were captured by the USA 1944, and became part of its Trust Territory 1947.