Human Conflict Project

All events · Cold War Proxies

The Bougainville Conflict and Blockade

1988–1998 · Oceania

Displacement
Displaced
85,000
About 67,300 people were internally displaced into government 'care centres' and 15,000-20,000 fled the island altogether, out of a pre-war population of roughly 160,000; more than half the island's population was displaced at some point, and about 50,000 were still in care centres at the ceasefire.
Share of the population affected
53%
of the population of Bougainville (North Solomons Province) at the outbreak of the conflict, 1990
Killed
1,000–20,000
excess mortality incl. disease and starvation

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What happened

Landowner grievances over compensation and environmental damage from the Australian-operated Panguna copper mine escalated into sabotage in 1988 and then into a secessionist war between the Bougainville Revolutionary Army and the Papua New Guinea Defence Force; the mine closed in 1989 and never reopened. From May 1990 Papua New Guinea imposed a sea and air blockade on the island, which lasted formally until September 1994 and in practice for up to eight years in BRA-held areas, barring medicines and other goods; health centre records document 2,023 deaths from preventable disease between January 1990 and July 1991 alone. Government forces concentrated civilians in 'care centres', into which about 67,300 people were displaced, while 15,000 to 20,000 left the island, mainly for the Solomon Islands. Amnesty International documented at least 62 extrajudicial executions and 13 disappearances by the PNGDF and government-backed Resistance forces, along with deliberate killings and hostage-taking by the BRA, and noted that only one alleged PNGDF killing had been investigated. A truce in 1997 and the Bougainville Peace Agreement of 2001 ended the war and created an autonomous region; a non-binding independence referendum in 2019 returned an overwhelming vote for independence.

Parties

Papua New Guinea forces fought the Bougainville Revolutionary Army over the Panguna mine and secession, imposing a sea and air blockade on the island

Disputed

The death toll is heavily disputed, ranging from about 1,000-2,000 direct combat deaths to the 15,000-20,000 total widely accepted on Bougainville itself, which includes deaths from preventable disease under the blockade; because no census or civil registration functioned during the war, the higher figures are extrapolations from health-centre records and population estimates rather than counts.

The denominator

Papua New Guinea's 1980 census counted about 128,000 on Bougainville and the 2000 census 175,160; no census could be taken during the conflict, so the 1990 population is interpolated at roughly 155,000-160,000. Estimates that the blockade contributed to as many as 15,000-20,000 deaths, mostly from lack of medicine, are contested and cannot be verified against any registration system.

Where the baseline comes from

On the death toll

The low end counts direct combat-related deaths only, estimated at roughly 1,000-2,000. The high end is the figure of 15,000-20,000 that the published synthesis describes as most widely accepted on Bougainville, and which counts deaths from preventable disease and lack of medical supplies under the blockade alongside killings; health-centre data recorded 2,023 such deaths in an eighteen-month period early in the war. Conciliation Resources cites 'up to 20,000'. The spread is driven by whether blockade mortality is counted and by the absence of any functioning registration system.

Documented forms of violence

Summary ExecutionEnforced DisappearanceArbitrary DetentionStarvation and Siege

Extrajudicial executions, disappearances and arbitrary detention were documented by Amnesty International in 1997, and the blockade's denial of medical supplies and its mortality effects are documented in the published synthesis of Bougainville Crisis health data.

Formal findings

Movements mapped

Countries touched, on present-day borders

Papua New Guinea, Solomon Is.

Sources

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