Autonomous Region of Bougainville
Bougainville, officially the Autonomous Region of Bougainville, is an autonomous region in Papua New Guinea. The largest island is Bougainville Island, while the region also includes Buka Island and a number of outlying islands and atolls. The provisional capital is Buka, on Buka Island.
In 2024, the region had a population of 367,093 people. The lingua franca of Bougainville is Tok Pisin, while a variety of Austronesian and non-Austronesian languages are also spoken. The region includes several Polynesian outliers where Polynesian languages are spoken. Geographically, the islands of Bougainville and Buka form part of the Solomon Islands archipelago, but they are politically separate from the independent country of Solomon Islands. Historically, Bougainville and Buka, together with the islands of Choiseul, Santa Isabel, the Shortlands, and Ontong Java, which are all now part of the country of Solomon Islands, formed the German Solomon Islands Protectorate, the geographical area later being referred to as the North Solomon Islands.
Bougainville has been inhabited by humans for at least 29,000 years. During the colonial period, the region was occupied and administered by the Germans, Australians, Japanese, and Americans for various periods. The name of the region originates from French admiral Louis Antoine de Bougainville, who reached it in 1768.
Bougainvillean separatism dates to the 1960s, and the Republic of the North Solomons was declared shortly before the independence of Papua New Guinea in 1975; it was subsumed into Papua New Guinea the following year. Conflict over the Panguna mine became the primary trigger for the Bougainville Civil War, which resulted in the deaths of up to 20,000 people. A peace agreement resulted in the creation of the Autonomous Bougainville Government.
In late 2019, a non-binding independence referendum was held with 98% voting for independence rather than continued autonomy within Papua New Guinea. As a result, the regional authorities intend to become independent between 2025 and 2027, pending ratification by the Papua New Guinean government. If ratified, the capital may relocate from Buka back to the previous location of Arawa. In March 2025, the Bougainville Independence Leaders Consultation Forum recommended 1 September 2027 as the date of independence.
History
Prehistory
Bougainville has been inhabited by humans for at least 29,000 years, according to evidence obtained from Kilu Cave on Buka Island. Until about 10,000 years ago, during the Last Glacial Maximum, there was a single island referred to as "Greater Bougainville" that spanned from the northern tip of Buka Island to the Nggela Islands north of Guadalcanal.The first inhabitants of Bougainville were Australo-Melanesians who presumably arrived from the Bismarck Archipelago. Around 3000 years ago, Austronesian peoples brought the Lapita culture to the islands, introducing pottery, agriculture, and domesticated animals such as pigs, dogs, and chickens. Both Austronesian and non-Austronesian languages are spoken on the islands to this day, however, there has been significant mixing between the populations to the point that cultural and genetic differences are no longer correlated with language.
Colonial history
The first Europeans to sight present-day Bougainville were the Dutch explorers Willem Schouten and Jacob Le Maire, who glimpsed Takuu Atoll and Nissan Island in 1616. British naval officer Philip Carteret saw Buka Island in 1767 and also visited the islands that were later named in his honour. In 1768, French admiral Louis Antoine de Bougainville sailed along the east coast of the island that now bears his name.German administration
The German Empire, which had already begun operations in New Guinea, annexed present-day Bougainville in 1886, after agreeing with the United Kingdom to divide the Solomon Islands archipelago between them. A German protectorate over the northern islands was established later that year, but the British Solomon Islands Protectorate was not established until 1893. The initial boundary between the two territories was much more southerly, with Choiseul Island, Santa Isabel Island, Ontong Java, the Shortland Islands, and part of the Florida Islands included in the German section. The current boundary between PNG and Solomon Islands is derived from the Tripartite Convention of 1899, which saw those islands ceded to the United Kingdom.The German Solomon Islands were administered through German New Guinea, although it took almost two decades for an administrative presence to be established. The German administrative station at Kieta, established in 1905, was preceded by a Marist mission, which succeeded in converting a majority of the islanders to Catholicism. The first fully commercial plantation was established in 1908, but German annexation had little economic impact.
Australian administration
The Australian Naval and Military Expeditionary Force occupied Bougainville in December 1914, as part of the Australian occupation of German New Guinea. The 1919 Treaty of Versailles established the former colony as a League of Nations mandate, administered by Australia as the Territory of New Guinea. A civilian administration was established in 1920, after which German nationals were deported and their property expropriated. A number of punitive expeditions took place during both the German and Australian administrations, as part of "pacification" programs. The colonial period saw significant changes in the culture of the islanders.File:42 Bombardment Group - B-25 Mitchells.jpg|thumb|right|American B-25 Mitchell bombers from the 42nd Bombardment Group over the Selay Peninsula of Bougainville, 1944
In 1942, Bougainville was invaded by the Japanese in order to provide a support base for the operations elsewhere in the South-West Pacific. The Allied counter-invasion resulted in heavy casualties, beginning in 1943, with full control of the islands not re-established until 1945. After the war the Australian government incorporated Bougainville and the rest of the mandate into the Territory of Papua and New Guinea, the immediate predecessor of present-day Papua New Guinea.
Modern history
from Australia in 1975. As Bougainville is rich in copper and gold, a large mine had been established at Panguna in the early 1970s by Bougainville Copper Limited, a subsidiary of Rio Tinto. Disputes by regional residents with the company over adverse environmental impacts, failure to share financial benefits, and negative social changes brought by the mine resulted in a local revival for a secessionist movement that had been dormant. Activists proclaimed the independence of Bougainville in 1975 and in 1990, but both times central government forces suppressed the democratic independence movement.Civil war
In 1988, the Bougainville Revolutionary Army increased their activity significantly. Prime Minister Sir Rabbie Namaliu ordered the Papua New Guinea Defence Force to put down the rebellion, and the conflict escalated into a civil war. The PNGDF retreated from permanent positions on Bougainville in 1990 but continued military action. The conflict involved pro-independence and loyalist Bougainvillean groups as well as the PNGDF. The war claimed an estimated to lives.In 1996, Prime Minister Sir Julius Chan made the controversial move to hire Sandline International, a private military company previously involved in supplying mercenaries in the civil war in Sierra Leone, to put down the rebellion.
Peace agreement and autonomy
The Bougainville conflict ended in 1997 after negotiations brokered by New Zealand. In 2000, A peace agreement was completed and, together with disarmament, provided for the establishment of an Autonomous Bougainville Government. The parties agreed to have a referendum in the future on whether the island should become politically independent.On 25 July 2005, rebel leader Francis Ona died after a short illness. A former surveyor with Bougainville Copper, Ona was a key figure in the secessionist conflict and had refused to formally join the island's peace process.
In 2015, Australia announced it would establish a diplomatic post in Bougainville for the first time. In 2016, it cancelled those plans acknowledging that it had not obtained the PNG government's approval.
Independence referendum
In 2019, a non-binding independence referendum was held with 98.3% voting for independence rather than continued autonomy within Papua New Guinea. As a result, the regional authorities intend to become independent between 2025 and 2027. A draft constitution for a "Republic of Bougainville" was published by the Autonomous Bougainville Government in May 2024. In March 2025, the Bougainville Independence Leaders Consultation Forum recommended 1 September 2027 as the date of independence. Prime Minister James Marape cautioned that Bougainville's economy is not sustainable enough for independence.Geography
The Bougainville region occupies the north of the Solomon archipelago with Bougainville Island, which is the largest island of this group. The border between Papua New Guinea and the nation of Solomon Islands lies just south in the middle of a strait that separates it from the Shortland Islands.The island of Buka is north of Bougainville, separated by a narrow strait. The region includes other more or less remote islands and atolls:
- the Green Islands with its main island Nissan;
- the Carteret Islands;
- Takuu Atoll, a Polynesian outlier;
- Nukumanu Atoll, a Polynesian outlier;
- the Nuguria Islands, a Polynesian outlier.
Government and politics
Elections for the first autonomous government were held in May and June 2005; Joseph Kabui, an independence leader, was elected president. He died in office on 6 June 2008. After interim elections to fill the remainder of his term, John Momis was elected as president in 2010 for a five-year term. He supports autonomy within a relationship with the national government of Papua New Guinea.The Constitution of Bougainville specifies that the Autonomous Bougainville Government shall consist of three branches:
- Executive: the President of the Autonomous Region of Bougainville who chairs the Bougainville Executive Council.
- Legislative: the Bougainville House of Representatives.
- Judicial: the Bougainville Courts including a Supreme Court and High Court.