Between 1946 and 1958 the United States fired 67 nuclear weapons in the Marshall Islands. Between 1949 and 1989 the Soviet Union fired 456 at Semipalatinsk, in Kazakhstan. People lived beside both sites.
The short answer, from the records read here: on 1 March 1954 the biggest U.S. test, Bravo, put fallout on Marshallese atolls, 28 U.S. servicemen and 23 Japanese fishermen. The Atomic Energy Commission’s chairman counted 236 Marshallese moved; the 401 people of Ailuk were not moved; the National Cancer Institute counts 14,000 residents exposed to the whole testing program. A Marshall Islands tribunal set up under the 1986 agreement awarded over $87 million for personal injuries and had paid $71.7 million by the end of 2004. It awarded about $2.3 billion for the lands of four atolls, by these sources, almost all of it unpaid; Enewetak’s counsel puts the unpaid total at over $3 billion in today’s money. In Kazakhstan the Soviet military ran the site in secrecy, and the Kazakh republic’s president closed it by decree on 29 August 1991. Counts of the people exposed there run from 220,000 to more than 1.5 million, depending on who counted.
Each government gets its own say, in its own documents. What the record does not show is marked where it comes up. Not read: the Soviet Ministry of Defence’s and the Soviet government’s own statements of 1989 and 1991 (the Wilson Center archive refused a download); the Dispensary No. 4’s own records; the basis of Kazakhstan’s 1.3 million figure and the amounts paid under its 1992 law; the Marshall Islands government’s full reply to the 2004 U.S. report; the primary transcript of Eisenbud’s remark of January 1956 (the Marshall Islands Journal places it on Utrik, with a 15-roentgen exposure that fits Utirik; Enewetak’s counsel attaches it to Rongelap); the Bikinians’ own accounts beyond the rough scan of one journal paper; Japanese-language records of the Lucky Dragon; and the day of Suleimenov’s television appeal, which sources date the 26th or the 28th of February. Death tolls and doses differ by who counted, so the story says who. For the bombs themselves see the-most-terrible-bomb.
1949
Two proving grounds
Between 1946 and 1958 the U.S. fired 67 nuclear weapons in the Marshall Islands. Between 1949 and 1989 the Soviet Union fired 456 at Semipalatinsk, in what is now Kazakhstan. Both places were someone’s home. This story starts with the people who lived there, in their own words where the record has them, then sets out what each government said when asked. Counts differ by who counted, so it says who.
67Nuclear tests the U.S. fired in the Marshall Islands, 1946 to 1958, by the U.S. Department of Energy’s count. The Soviet Union fired 456 at Semipalatinsk, 1949 to 1989
Between 1946 and 1958, the U.S. conducted 67 atmospheric nuclear weapons tests in the Marshall Islands, 43 of which were conducted at Enewetak Atoll.
Report on the Status of the Runit Dome in the Marshall Islands (Report to Congress, June 2020), U.S. Department of Energy, Jun 2020. Primary record. Open the source
Mar 1946
A king stands up
On a Sunday in February 1946, after church, Commodore Ben Wyatt, the U.S. military governor of the Marshalls, asked the 167 people of Bikini to leave their atoll “temporarily” for “the good of mankind and to end all world wars.” After “much confused and sorrowful deliberation,” King Juda answered for them; Emso Leviticus later said no one dissented in front of the Americans. The Navy took them to Rongerik with food for several weeks, and by 1947 they were “actually and literally starving.” Then Kwajalein, then Kili. In 1998 the IAEA advised against permanent resettlement of Bikini. They have not gone home.
If the United States government and the scientists of the world want to use our island and atoll for furthering development, which with God’s blessing will result in kindness and benefit to all mankind, my people will be pleased to go elsewhere
King Juda, February 1946, as recorded by the anthropologist Leonard Mason in 1954. Scholarship & press. Open the source
1 Mar 1954
Bravo
At 6:45 a.m. on 1 March 1954 the U.S. fired a 15-megaton hydrogen bomb at Bikini. Strauss, the Atomic Energy Commission’s chairman, said its yield was about double the estimate. The Commission told the U.N. the wind shifted unexpectedly. Merril Eisenbud wrote of reports it was fired despite an adverse forecast; the Marshall Islands government told the U.S. committee forecasts were ignored; and a review it commissioned found “some evidence” that U.S. officials had warnings and did not act. None of these sources shows the test was fired knowing fallout would reach people.
15 megatonsYield of the Bravo test of 1 March 1954, a thousand times the strength of the Hiroshima bomb, as the U.S. Advisory Committee on Human Radiation Experiments put it
Bravo was the second test of a thermonuclear (hydrogen) bomb, with a yield of 15 megatons, a thousand times the strength of the Hiroshima bomb.
Advisory Committee on Human Radiation Experiments, Final Report, Chapter 12: The Marshallese, U.S. Advisory Committee on Human Radiation Experiments (copy on the U.S. Department of Energy Openness site), 1995. Primary record. Open the source
3 Mar 1954
Snow on Rongelap
Lijon Eknilang lived on Rongelap, 150 kilometres from the blast. Her people stayed “two and one-half days after the fall-out came.” Then Joint Task Force Seven moved 236 Marshallese and 28 U.S. servicemen, the count Strauss gave. The 401 people of Ailuk were not moved, though a U.S. committee wrote that the task force “should have evacuated” them. The National Cancer Institute counts 14,000 Marshall Islands residents exposed to the whole testing program. The petition they sent the U.N. said Rongelap’s people “would have avoided much danger” had they known not to drink the water.
Not long after the light from Bravo, it began to snow in Rongelap. We had heard about snow from the missionaries and other westerners who had come to our islands, but this was the first time we saw white particles fall from the sky and cover our village.
Lijon Eknilang of Rongelap, to the International Court of Justice, 14 November 1995. Primary record. Open the sourceArchived copy
23 Sep 1954
The Lucky Dragon
The Japanese tuna boat Daigo Fukuryu Maru was showered with ash. All 23 crew were victims of acute radiation poisoning. The radio operator, Aikichi Kuboyama, 40, died on 23 September; David Ropeik, writing in the Bulletin, gives the official cause as liver failure. Matashichi Oishi, then 20, said in 2003 that his first baby was stillborn, that “nuclear weapons and their radiation changed my life,” and that Japan’s government too failed the victims. Japan checked 856 boats. The U.S. paid $2 million ex gratia in 1955; the crew got about $5,500 each.
These “ashes of death” caused various symptoms in the crew: headache, vomiting, eye pain, bleeding from the gums, hair loss, and more. All 23 were victims of acute radiation poisoning.
Tokyo Metropolitan Daigo Fukuryu Maru Exhibition Hall, in the Hiroshima Peace Memorial Museum’s virtual museum. Primary record. Open the source
31 Mar 1954
What Washington said
On 31 March 1954 Strauss said the Japanese boat “must have been well within the danger area,” and that the Marshallese “appeared to me to be well and happy.” The Commission’s own published area ended at 166°16′ East. The crew saw the flash to their west, so the boat lay east of Bikini; at eighty miles that is about 20 miles outside it, by this story’s reckoning. Ropeik also puts it outside, but its position is unsettled. Strauss said people were “promptly evacuated”; Rongelap waited two and a half days. Dr. Eugene Cronkite recalled telling Strauss reports of minimal danger were “a downright lie”: “nobody reads yesterday’s newspapers.”
outside of the established danger area, the Atolls of Rongelap and Utirik, inhabited by Marshallese, and Rongerik, temporarily occupied by American Weather Personnel, were contaminated by radioactive fall-out because of an unexpected shift in wind conditions.
Atomic Energy Commission to the State Department, 9 June 1954. Primary record. Open the source
20 Apr 1954
The petition
On 20 April 1954 a petition to the United Nations, “Complaint regarding the explosion of lethal weapons within our home islands,” was signed by 111 people, eleven listed as members of the Marshallese Congress’s hold-over committee. It asked first that “all the experiments with lethal weapons within this area be immediately ceased.” It said that “aside from the complaint registered in this petition” the American administration was “by far the most agreeable one in our memory,” and that no one could promise the exposed people’s “complete recovery.” A U.S. telegram feared the sympathy one author, Dwight Heine, drew, and proposed adding him to the U.S. delegation, to be released to speak for the petitioners.
Land means a great deal to the Marshallese. It means more than just a place you can plant your food crops and build your houses; or a place where you can bury your dead. It is the very life of the people. Take away their land and their spirits go also.
Petition of the Marshallese people to the United Nations, 20 April 1954, as the U.S. mission sent it to Washington. Primary record. Open the source
Jul 1954
What the U.S. told the U.N
On 14 May 1954 Ambassador Henry Cabot Lodge said the U.S. was “very sorry indeed,” found the petitioners’ requests “reasonable and helpful,” and said people moved would lose nothing financially. To the call to stop, he said the tests were “required in the interests of general peace and security.” In July the Council voted 9 to 3 for a resolution U.S. delegate Mason Sears called “tacitly approving” them. Privately he urged settlements “forthwith.” Congress paid Rongelap $950,000 in 1964, and Utirik $1,000 a resident in 1977.
I am informed that there is no medical reason to expect any permanent after-effects on their general health, due to the falling of radioactive materials.
Ambassador Henry Cabot Lodge, 14 May 1954, on the people evacuated after Bravo. Primary record. Open the source
16 Jul 1954
What Moscow said
On 9 June 1954, a U.S. memo records, the Soviet diplomat Mikhail Sumskoi answered a question about the Soviet Union’s own explosions with “but that was not in a trust territory.” On 16 July the Soviet delegate asked the Trusteeship Council to note that the tests “have caused irreparable harm to the health of part of the indigenous population” and to tell the U.S. it “should desist.” The Soviet draft was defeated; so was India’s move for a World Court opinion. The Soviet Union, Syria and India voted against the U.S. resolution. Semipalatinsk had been in use since 1949.
In the course of our conversation I had occasion to say that there had been a number of atomic explosions in the USSR and that I wondered what had happened there. Mr. Sumskoi’s reply was, “but that was not in a trust territory”.
U.S. delegate Mason Sears’s memo of a talk with the Soviet delegate Mikhail Sumskoi, 10 June 1954. Primary record. Open the source
1976
What it did to health
Lodge’s “no permanent after-effects” did not hold. The U.S. committee wrote that thyroid abnormalities, and one fatal case of leukemia, were the most significant late effects among the Marshallese. Utirik, with about a tenth of Rongelap’s estimated dose, had as much thyroid cancer, three cases each in 1976, a Brookhaven doctor wrote. Eknilang has had thyroid surgery, and says Lekoj Anjain’s body came home “in a coffin.” The National Cancer Institute estimated about 530 extra lifetime cancers among 14,000 exposed. The people measured as a “control group” also fell ill, Eknilang says; the committee found many of the controls had some exposure.
I cannot have children. I have had miscarriages on seven occasions. On one of those occasions, I miscarried after four months. The child I miscarried was severely deformed; it had only one eye.
Lijon Eknilang, to the International Court of Justice, 14 November 1995. Primary record. Open the sourceArchived copy
Jan 1956
Project 4.1
On 6 March 1954 the task force command approved a request from the Armed Forces Special Weapons Project for a study of “human beings exposed to significant” radiation; on 8 March a secret order set it up, telling staff to keep it quiet “due to possible adverse public reaction.” Dr. Cronkite understood his mission as “examine and treat”; he and Dr. Conard deny nontherapeutic research. In January 1956 Merril Eisenbud, of the Commission, said Utrik would give “good environment data.” The Marshall Islands government says the exposures were a deliberate experiment. The U.S. committee found no evidence of that, but that consent was “neither sought nor obtained.”
While it is true that these people do not live, I would say, the way Westerners do, civilized people, it is nevertheless also true that these people are more like us than the mice.
Merril Eisenbud, Atomic Energy Commission, 13-14 January 1956, as the Marshall Islands Journal quotes a Department of Energy archive record, on Utrik. Scholarship & press. Open the source
Jun 1957
Home to Rongelap
In 1954 U.S. medical officers advised no further radiation for the exposed Rongelap people “for at least 12 years,” and, allowing for unknowns, none for “rest of natural lives.” On 27 February 1957 the Atomic Energy Commission approved their return, despite “lingering residual radiation” in the food. A health physicist wrote that “we will have to settle for the external readings only”; the committee could not learn why a fuller survey was skipped. Dr. Conard wrote it was the people’s “express wish” to go home. A 1957 report called it safe and said living there would give “most valuable ecological radiation data.” In 1985 Eknilang’s people “evacuated ourselves.”
The habitation of these people on this island will afford most valuable ecological radiation data on human beings.
Project report of 1957, quoted by the U.S. Advisory Committee on Human Radiation Experiments, which did not conclude that research goals drove the decision. Primary record. Open the source
Sep 1978
Bikini again
In 1967 U.S. agencies began considering a return, and in 1969 the Atomic Energy Commission said “there’s virtually no radiation left.” Families moved back, but in 1975 tests found more radioactivity than expected and the Bikinians sued in federal court, demanding a survey. In April 1978 doctors found radiation in many of the 139 people on the atoll well above the U.S. limit, and in September they were moved out again. Their later claim for compensation, Juda v. United States, was dismissed once the 1986 Compact took effect.
There’s virtually no radiation left and we can find no discernible effect on either plant or animal life
Atomic Energy Commission, 1969, as quoted in a 1997 history of the Bikini people. Scholarship & press. Open the source
Dec 2004
What was paid
In the 1986 Compact the U.S. “accepts the responsibility for compensation” and put in $150 million as a “full and final settlement.” The Nuclear Claims Tribunal, set up under it by the Marshall Islands legislature, awarded over $87 million for personal injuries and had paid $71.7 million to 1,917 people by 2004; over 40 percent of awardees died before full payment. For land it awarded Bikini $563 million and Enewetak $386 million, and, per Enewetak’s counsel David Cohen, Utrik $307 million and Rongelap $1.03 billion: almost all unpaid. Payments stopped in January 2009, and later suits were dismissed.
$71.7 millionPaid by the Nuclear Claims Tribunal on personal-injury awards of over $87 million, to 1,917 people, as of December 2004, by the Congressional Research Service’s account
As of December 2004, the NCT had paid $71.7 million on personal injury awards totaling over $87 million to 1,917 individuals.
Republic of the Marshall Islands Changed Circumstances Petition to Congress (CRS report RL32811, updated 30 August 2005), Congressional Research Service, U.S. Library of Congress, 30 Aug 2005. Primary record. Open the source
Nov 2004
The U.S. answer
In 2000 the Marshall Islands government asked Congress for about $3.3 billion, under a clause allowing more if injuries unforeseen in 1986 left the Compact “manifestly inadequate.” A 2004 State, Energy and Defense report said it did not qualify, that the “present impact” of fallout is limited to the northerly atolls, and that the tribunal paid awards “too liberally.” Dick Thornburgh, reviewing for the Marshall Islands, found the tribunal proper. Eknilang says her sister Chiyoko Tamayose went to the hearing and was never heard. In 2023 the U.S. said the compact and tribunal “constitute the full settlement of all claims”; the Marshallese claim about $3 billion.
the Marshall Islands' request does not qualify as "changed circumstances" within the meaning of Article IX of the nuclear claims settlement agreement
U.S. interagency report of November 2004, as quoted by the Congressional Research Service. Primary record. Open the source
Jun 2020
The dome
On Runit Island, in Enewetak Atoll, the U.S. cleanup of the 1970s put contaminated soil and debris in an unlined test crater under a concrete cap, finished in 1979. The Department of Energy says the dome “is not in any immediate danger of collapse or failure,” that there are “no data” showing a measurable adverse effect, and that the Marshall Islands took over responsibility; it adds that the site is “a concern to the people of Enewetak.” A U.N. expert in 2012 had information its structure was “substandard.” In 2019 Secretary-General Guterres, after meeting President Hilda Heine, who feared a leak, called it “a kind of coffin.”
100,000+Cubic yards of contaminated soil and debris sealed in the Runit Dome, by the U.S. Department of Energy’s count
The containment structure, built in the late 1970s, contains over 100,000 cubic yards of radioactively contaminated soil and debris that were encapsulated in concrete (waste pile) inside an unlined nuclear test crater
Report on the Status of the Runit Dome in the Marshall Islands (Report to Congress, June 2020), U.S. Department of Energy, Jun 2020. Primary record. Open the source
29 Aug 1949
Semipalatinsk
Soviet leaders chose a site in the Semipalatinsk region, and local people “were kept in the dark about the site’s use.” On 29 August 1949, in rain and wind, it fired the first Soviet atomic bomb. Togzhan Kassenova, a nuclear-policy researcher, writes that the test staff knew the weather would expose nearby people to more fallout. It was the first of 456 tests, the last on 19 October 1989. Kazakhstan’s embassy in Finland gives 468, the 1991 closing decree about 500. The Soviet military ran the site in secrecy and withheld radiation data.
456Nuclear tests the Soviet Union fired at Semipalatinsk between 1949 and 1989: 340 underground and 116 aboveground
In all, the Soviet Union conducted 456 nuclear tests at Semipalatinsk (340 underground and 116 aboveground), starting with that first one in August 1949 and ending with the final test on October 19, 1989.
The lasting toll of Semipalatinsk's nuclear testing (Togzhan Kassenova), Bulletin of the Atomic Scientists, 28 Sep 2009. Scholarship & press. Open the source
1968
Under the clouds
Karipbek Kuyukov was born without arms in Yegyndybulak, a village about 100 kilometres from the site; he attributes this to his parents’ exposure and says people were “treated as guinea pigs.” Gulsum Kakimzhanova, born in 1952 near Semipalatinsk, recalls her railway-worker father’s hair falling out overnight and thinks radiation was the cause. Kassenova reports babies born with missing limbs. The other view is Natalya Zhdanova’s, who lived from 1968 to 2000 in Kurchatov, the secret town the military built for the site, in a military family: “People were not afraid of radiation–maybe because nobody was suffering from leukemia or other diseases.”
Years ago during the testing, my parents bore witness to those bright and vast mushroom clouds as they filled the sky. When I was born, I was born without arms, and it was a shock to my mother.
Karipbek Kuyukov, 2012 speech in Astana, as quoted by Beyond Nuclear International. Scholarship & press. Open the source
1957
Two clinics, two studies
In 1957, Kassenova writes, the Soviet military built the Anti-Brucellosis Dispensary No. 4, purportedly for tuberculosis but in fact to observe radiation’s effects on local people. This story did not read what its own records show. Separately, between 1957 and 1960 Kazakh doctors examined people near the site. According to the study’s leader, Bahiya Atchabarov, interviewed years later, they found “a direct correlation between illness and radiation exposure,” with bleeding and skin changes; doctors sent by the military blamed “environmental factors and poverty.” The team was made to stop. Its findings filled 12 volumes of classified documents.
In 1957, the military built the Anti-Brucellosis Dispensary No. 4, purportedly to monitor tuberculosis infections in the area. In reality, though, the facility was built to secretly observe the impacts of radiation exposure from nuclear testing on local people.
Togzhan Kassenova, Bulletin of the Atomic Scientists, 2009 (an opinion piece). Scholarship & press. Open the source
28 Feb 1989
February 1989
After a radioactive gas leak at the test site, the poet Olzhas Suleimenov told television viewers on 26 February and called a meeting; on the 28th it founded the Nevada-Semipalatinsk movement, named in solidarity with American protesters. On the 20th the Semipalatinsk party chief had asked Moscow in code to cut the tests. In late March the military invited the movement to a test; a 2 April article, written to answer its concerns, reported nothing abnormal and blamed local industry. Nursultan Nazarbayev, then head of Kazakhstan’s Council of Ministers, praised the movement but, a 2024 thesis reports, said the military could not be blamed. In August it rallied at Karaul, a village by the site.
In February 1989, thousands gathered in Almaty, the capital of Kazakhstan at the time, to hear the Kazakh poet Olzhas Suleimenov condemn nuclear testing and announce the creation of the anti-nuclear organization Nevada-Semipalatinsk.
Togzhan Kassenova, Bulletin of the Atomic Scientists, 2009. Scholarship & press. Open the source
29 Aug 1991
29 August 1991
Forty-two years to the day after the first test, Nursultan Nazarbayev, President of the Kazakh SSR, signed Decree No. 409 closing the site, “in deference to social demands.” Kassenova says two million signed the movement’s petition and that it came when Moscow was in turmoil after the failed coup; a thesis citing her says the government feared the movement’s protest planned for that day. Nazarbayev said in 2012 he signed “regardless of the tough opposition” of the Soviet military-industry leadership. Soviet security agencies had drafted a decree to end tests in January 1993. This story did not find the Soviet government’s own reply.
Nuclear weapons testing has been carried out in the territory of the Kazakh SSR since 1949. Approximately 500 nuclear explosions were fired during this period which occurred to be harmful for people’s health and lives.
Decree No. 409 of the President of the Kazakh SSR, 29 August 1991, as published by Kazakhstan Today. Scholarship & press. Open the source
Dec 2009
How many
Kassenova, citing a 2008 Kazakh and Japanese book, gives 220,000 affected people, most at 7 to 350 millisieverts and about 37,200 at 350 to 990. Kazakhstan’s embassy in Finland says more than 1.3 million were exposed; a state institute says more than 1.5 million suffered. These mix dosed, exposed and suffered; the sources do not say how each counted, and this story cannot reconcile them. After 1991 Kazakhstan ordered medical help and compensation; no Soviet payment is in the record read. Kuyukov: “My main mission on this land is to do everything I can for people like me to be the last victims of nuclear tests.”
220,000People counted as affected by the Semipalatinsk tests, as Togzhan Kassenova reports it; about 37,200 of them at 350 to 990 millisieverts. Kazakhstan’s embassy in Finland says more than 1.3 million
At the very least, a majority of the 220,000 affected people were exposed to an estimated dose of between 7 millisieverts and 350 millisieverts, and about 37,200 residents were exposed to radiation doses between 350 and 990 millisieverts during the period of atmospheric testing.
The lasting toll of Semipalatinsk's nuclear testing (Togzhan Kassenova), Bulletin of the Atomic Scientists, 28 Sep 2009. Scholarship & press. Open the source