Nauru is the world's third-smallest nation by land area at 21 square kilometers. The island sits 42 kilometers south of the equator in Micronesia, approximately 300 kilometers east of Kiribati. The Republic of Nauru has no official capital, though government offices concentrate in Yaren District on the southern coast. Approximately 12,500 people inhabit the island as of recent estimates, with Denigomodu holding the largest population among the fourteen administrative districts. The island's highest point reaches 71 meters at Command Ridge on the interior plateau known locally as Topside. Nearly all residential and commercial activity occupies a narrow coastal strip rarely exceeding 300 meters in width, as the interior consists largely of exposed phosphate pinnacles from a century of mining. Buada Lagoon, a landlocked brackish water body on the island's interior, and Anibare Bay on the east coast represent the primary natural features distinct from the mined plateau.
The indigenous Nauruan people descend from Micronesian and Polynesian voyagers who settled the island approximately 3,000 years ago based on archaeological evidence. Nauruans comprised twelve matrilineal clans with distinct territories before European contact. Traditional governance operated through clan structures without centralized authority, with each clan maintaining rights to specific land portions and reef areas. Germany annexed Nauru in 1888 as part of the Marshall Islands Protectorate, introducing coconut plantations and administratively linking the island to German New Guinea. The Pacific Phosphate Company discovered commercially viable phosphate deposits in 1906, transforming Nauru's trajectory entirely. Britain, Australia, and New Zealand established the British Phosphate Commission in 1919 following German defeat in World War I, and the League of Nations assigned the island to Australia as a Class C mandate in 1920 with Britain and New Zealand as co-trustees.
Japanese forces occupied Nauru from August 1942 to September 1945, constructing fortifications and gun emplacements that remain visible across the island. The occupation proved catastrophic for Nauruans. Japanese authorities deported 1,200 Nauruans—nearly two-thirds of the population—to Truk Lagoon in the Caroline Islands in 1943 to work as laborers after American bombing made maintaining the garrison population unsustainable. Starvation and disease killed 463 Nauruans during the two-year exile. Only 737 survivors returned to Nauru in January 1946. The near-extinction experience established October 26 as Angam Day, commemorating moments when the Nauruan population reached 1,500—the number believed necessary for cultural survival. The day was first marked in 1932 when population recovered to that threshold following earlier declines, then again in 1949 following post-war recovery.
Nauru became self-governing in 1966 and achieved full independence on January 31, 1968, making it the smallest independent republic in the world at that time. Hammer DeRoburt, who had led negotiations for self-governance since the early 1950s, became the first president and served for most of the period until 1989. The newly independent nation immediately purchased the British Phosphate Commission assets, establishing the Nauru Phosphate Corporation in 1970 with Nauruans holding complete control over their resource. This marked an extraordinary moment—a population of fewer than 5,000 people controlling one of the Pacific's most valuable mineral deposits with prices reaching record highs through the 1970s.
Phosphate revenues from approximately 1968 to 1990 generated wealth unprecedented for the population size. The government provided free housing, healthcare, and education while employing the majority of Nauruan workers in the phosphate industry or government services. Per capita GDP estimates reached among the highest globally during the late 1970s and early 1980s. The Nauru Phosphate Royalties Trust invested earnings internationally, holding properties in Australia, Hawaii, and elsewhere. The government purchased a 52-story office tower in Melbourne, residential properties across multiple continents, and aircraft. Citizens received substantial benefits without taxation.
The economic foundation collapsed between 1990 and 2005. Accessible phosphate reserves neared exhaustion by the early 1990s, with the Nauru Phosphate Corporation declaring bankruptcy in 1999. Mismanagement and poor investments depleted the trust fund, with most international assets sold or foreclosed. The government turned to offshore banking licensing in the late 1990s, issuing permits to entities that operated shell banks without physical presence. International pressure ended this revenue source by 2003, with Nauru appearing on money laundering blacklists. By 2004, the government could not pay public sector salaries regularly and depended on Australian aid for basic services.
Australia established the Nauru Regional Processing Centre in 2001, revived in 2012, to detain asylum seekers attempting to reach Australia by boat. The center has operated with interruptions, holding several thousand refugees and asylum seekers over two decades. Revenue from the Australian government for hosting the facility became essential to Nauru's budget, representing a significant portion of GDP. The arrangement generates controversy internationally regarding treatment conditions and Australia's offshore detention policy, but provides Nauru fiscal capacity absent from the post-phosphate collapse period.