All events · The War's Long Shadow

The Battle of Okinawa, the Civilian Camps and the US Seizure of Okinawan Land

1945–1972 · East & Southeast Asia

Displacement Territory Seized Mass Killing

Displaced

300,000

Okinawa Prefecture's records and US military reports indicate that some 250,000-300,000 civilians passed through US-run internment camps in the northern part of the main island in 1945, held for months and in some cases years while their home districts were built over. Land expropriation in the 1950s displaced the residents of villages including Isahama and communities on Iejima; an island-wide protest movement in 1956 drew a reported 250,000 participants. Bases still occupy roughly a fifth of Okinawa's main island.

Share of the population affected

52%

of the population of Okinawa Prefecture at the last pre-war census, 1940

Killed

94,000–150,000

conflict deaths incl. combatants

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What happened

The battle fought on Okinawa between April and June 1945 killed an estimated 94,000-150,000 Okinawan civilians, a quarter to a third of the prefecture's population, including deaths in mass suicides in which Japanese troops distributed grenades and, in documented cases, ordered or pressed civilians to kill themselves and each other. Survivors were collected into US internment camps in the north while their villages, land and cemeteries were absorbed into military installations. Under US administration in the 1950s the military expropriated further land: when about 98 per cent of landowners refused to sign leases, forced seizures followed, remembered in Okinawa as 'bayonets and bulldozers', with the communities of Isahama, Iejima and others resisting, and a reported 250,000 people joining island-wide protests in 1956. Some displaced families accepted assisted emigration to Bolivia and elsewhere. Okinawa reverted to Japan in 1972 with the bases in place. Japan's textbook treatment of the compulsory mass suicides has been repeatedly contested: the Education Ministry ordered references to army orders removed in 2007, prompting mass protest in Okinawa, and an Osaka court in 2008 rejected a libel suit brought against the writer Kenzaburo Oe over the same question.

Parties

US forces fought the 1945 battle among the civilian population, interned survivors in camps, and then expropriated Okinawan land for permanent bases under military administration

Disputed

Whether Japanese troops ordered the civilian mass suicides is disputed in Japanese politics and textbook policy; Okinawan testimony and the 2008 Osaka court judgment support the claim of military involvement, which some Japanese conservative groups and former officers deny.

The denominator

The 1940 census counted 574,579 residents of Okinawa Prefecture. Between 94,000 and 150,000 Okinawan civilians, a quarter to a third of the prefecture's people, died in the 1945 battle; almost all survivors on the main island passed through US civilian camps, and the base land seizures of 1953-56 under 'bayonets and bulldozers' displaced further thousands of households.

The affected figure combines wartime camp internment, which covered most surviving civilians in 1945, with the later land expropriations, which touched a different and much smaller group, so it should not be read as one population confined once.

Where the baseline comes from

Battle of Okinawa — Wikipediaopen-edited
United States Civil Administration of the Ryukyu Islands — Wikipediaopen-edited

On the death toll

Both figures are for Okinawan civilians killed in the 1945 battle. The lower is the conventional estimate used in most military histories; the higher reflects Okinawa Prefecture's own tallies, which record more than 149,000 Okinawan names on the Cornerstone of Peace, including those who died of starvation and in mass suicides. The postwar land seizures caused injuries and arrests but not mass death.

Documented forms of violence

Mass KillingDestruction of PropertyArbitrary Detention

Okinawa Prefecture's records, US military documents and survivor testimony collected in Japanese and Okinawan archives document the civilian deaths, the internment camps and the forced land seizures.

Movements mapped

Civilians moved into US camps in northern Okinawa, 1945
Okinawan emigration to Bolivia after land loss

Countries touched, on present-day borders

Japan, Bolivia

Sources

Battle of Okinawaopen-edited
Steve Rabson, 'Henoko and the U.S. Military: A History of Dependence and Resistance', Asia-Pacific Journalscholarly