Republic of Vanuatu is an island country located in the South Pacific Ocean. The archipelago, which is of volcanic origin, is 1,750 kilometres (1,090 mi) east of northern Australia, 540 kilometres (340 mi) northeast of New Caledonia, east of New Guinea, southeast of the Solomon Islands, and west of Fiji. Vanuatu was first inhabited by Melanesian people. The first Europeans to visit the islands were a Spanish expedition led by Portuguese navigator Fernandes de Queiros, who arrived on the largest island, Espiritu Santo, in 1606. Queirós claimed the archipelago for Spain, as part of the colonial Spanish East Indies, and named it La Austrialia del Espíritu Santo. In the 1880s, France and the United Kingdom claimed parts of the archipelago, and in 1906, they agreed on a framework for jointly managing the archipelago as the New Hebrides through an Anglo - French condominium. An independence movement arose in the 1970s, and the Republic of Vanuatu was founded in 1980. Since independence, the country has become a member of the United Nations, Commonwealth of Nations, Organisation internationale de la Francophonie and the Pacific Islands Forum.