Marshall Islands Nuclear Lawsuit: ICJ Ruling and U.S. Court Outcome

The Marshall Islands nuclear lawsuit was actually ten lawsuits, filed on April 24, 2014: applications at the International Court of Justice against all nine nuclear-armed states and a parallel federal case against the United States in the Northern District of California. The tiny Pacific nation, once used as a testing ground for 67 U.S. nuclear weapons detonations, asked the courts to declare that the nuclear powers had breached their legal obligation to negotiate disarmament in good faith and to order them to comply. By 2017 every case had been dismissed on procedural or jurisdictional grounds, and no court reached the substance of the disarmament claims.¹

Why the Marshall Islands Sued

Between 1946 and 1958, the United States conducted 67 nuclear tests in the Marshall Islands, most at Bikini and Enewetak atolls.² The 1954 Castle Bravo shot, a 15-megaton thermonuclear device roughly a thousand times more powerful than the Hiroshima bomb, sent heavy fallout across populated atolls when winds shifted unexpectedly. Cancers, thyroid disease, miscarriages, and displacement followed for decades. After Bravo, the U.S. Atomic Energy Commission ran “Project 4.1,” using exposed Marshallese as research subjects to study the effects of radiation.³

The 1986 Compact of Free Association was supposed to close the compensation question. Section 177 required the U.S. to fund a $150 million trust as “full and final settlement of all claims, past, present, and future” arising from the testing program.⁴ The Marshall Islands’ Nuclear Claims Tribunal eventually awarded more than $2.3 billion in damages, a sum the trust could not come close to paying.⁵ A 2000 petition to Congress under the Compact’s “Changed Circumstances” provision, seeking more than $3 billion, was rejected in 2004.⁶

The 2014 lawsuits were not about money. They were driven by Foreign Minister Tony de Brum, who as a nine-year-old had witnessed the Bravo flash, and they sought a court order compelling the nuclear powers to negotiate the elimination of their arsenals.⁷ De Brum assembled an international legal team led by Amsterdam-based lawyer Phon van den Biesen, attorneys from Keller Rohrback, and scholars from the London School of Economics and several European universities, with support from the Nuclear Age Peace Foundation and the Lawyers Committee on Nuclear Policy.¹

The Legal Theory

The claims rested on Article VI of the 1968 Nuclear Non-Proliferation Treaty, which requires parties to “pursue negotiations in good faith on effective measures relating to cessation of the nuclear arms race” and to achieve nuclear disarmament. The Marshall Islands also relied on the ICJ’s 1996 advisory opinion recognizing an obligation to “pursue in good faith and bring to a conclusion negotiations leading to nuclear disarmament in all its aspects.”¹ For states outside the NPT, the complaints treated the same obligation as customary international law binding on all nations.⁸

The relief sought was narrow but ambitious: a declaration that the respondent states had breached their disarmament obligations, and an order requiring them to take all necessary steps to comply within one year, including initiating good-faith negotiations toward a nuclear disarmament convention.¹

What Happened at the International Court of Justice

Only three of the nine states sued accepted the ICJ’s compulsory jurisdiction and appeared: India, Pakistan, and the United Kingdom. The other six, the United States, Russia, China, France, Israel, and North Korea, declined to recognize the court’s authority.⁸

Public hearings ran for roughly two weeks in March 2016 in The Hague.⁹ Everything turned on a threshold question: whether a legal “dispute” existed between the parties when the applications were filed. The respondent states argued the Marshall Islands had never raised these specific claims bilaterally before filing, so there was nothing for the court to resolve. The Marshall Islands pointed to its public statements at international forums, including a September 2013 address at a UN High-Level Meeting on Nuclear Disarmament and a February 2014 statement at a conference in Nayarit, Mexico, as adequate notice.¹⁰ India replied that its own positions on disarmament aligned with those of the Marshall Islands and no conflict of views existed.¹¹ The United Kingdom said general denunciations at multilateral meetings were too vague to notify it of a specific legal claim.

On October 5, 2016, the ICJ dismissed all three cases without reaching the merits. The court held that a dispute requires the respondent state to be aware, or unable to have been unaware, that its views are “positively opposed” by the applicant, and that this awareness had not been shown before April 2014.¹¹ The votes were extraordinarily close. India and Pakistan won 9 to 7. The UK case was tied 8 to 8, and ICJ President Ronny Abraham cast the deciding vote in the UK’s favor.⁸

The Dissents and the P5 Split

The composition of the majority drew immediate attention. All five judges who were nationals of the permanent UN Security Council members, each a nuclear-armed state, voted to dismiss. The eight dissenters came entirely from non-nuclear-weapon states, predominantly in the Global South.¹²

Judge Robinson argued the majority had invented a new requirement by demanding proof of the respondent’s “awareness,” writing that identifying a dispute should be an “objective, flexible and pragmatic” exercise and that the ruling contradicted decades of case law.¹⁰ Judge Bennouna accused the court of “pure formalism,” criticizing it for freezing its analysis at the filing date and ignoring the human dimension of the case.¹³ Judge Cançado Trindade wrote an expansive dissent arguing that the prohibition of nuclear weapons is an absolute norm of international law rooted in the “fundamental right to life,” and urged what he called a “people-centred approach” that looks past formal relationships between states to the populations affected by nuclear weapons.¹⁴

What Happened in U.S. Federal Court

The parallel U.S. case was filed the same day in the Northern District of California, with Keller Rohrback representing the Marshall Islands.¹ It sought declaratory and injunctive relief alleging the United States had breached NPT Article VI. In 2015, District Judge Jeffrey S. White dismissed the complaint on two grounds: the Marshall Islands lacked standing because a U.S. court order could not bind the other treaty parties, making the injury unredressable; and the claims were nonjusticiable political questions committed to the executive branch.¹⁵

On July 31, 2017, the Ninth Circuit affirmed. Judge M. Margaret McKeown held that Article VI of the NPT is “non-self-executing,” functioning as a directive to the political branches rather than creating rights enforceable in domestic courts. “Diplomatic negotiations among parties to this Treaty,” she wrote, “fall quintessentially within the realm of the executive, not the judiciary,” and ordering the U.S. to negotiate in good faith would cast the court as “nanny to the executive.”¹⁵ That ruling ended the litigation.

Where Things Stand Now

The lawsuits sought disarmament, not compensation, so their dismissal did not resolve the money question that had been unsettled since 1986. When the U.S. and the Marshall Islands renegotiated the Compact of Free Association, the agreement signed in Honolulu on October 16, 2023, and effective May 1, 2024, provided roughly $2.3 billion in economic assistance over 20 years, with $700 million directed to the Compact Trust Fund the Marshall Islands government said would be used to “address the needs of those affected by the nuclear testing program.”¹⁶ The implementing legislation, however, reaffirmed that the original Section 177 Agreement remains a “full and final settlement of all claims” and that nothing in the 2023 amendments changes that.¹⁷ The $700 million amounts to less than a quarter of the tribunal’s outstanding awards.

Tony de Brum, named the Arms Control Association’s 2016 “Arms Control Person of the Year” for leading the legal campaign, died on August 22, 2017, weeks after the Ninth Circuit ruling closed the last case.⁷ The disarmament obligation his lawsuits tried to enforce remains, in every court that has looked at it, a matter for negotiation among governments rather than a rule any court will apply.

1
Lawyers Committee on Nuclear Policy. Marshall Islands Nuclear Cases
2
Waging Peace. The Marshall Islands: U.S. Testing at Bikini Atoll and Enewetak Atoll
3
Heinrich Böll Foundation. Ongoing Consequences of the US Nuclear Testing Program in the Marshall Islands
4
U.S. Department of the Interior. Section 177 Agreement
5
Just Security. US Policy on Marshall Islands Nuclear Test Compensation Must Change
6
U.S. Department of State. Report on the Republic of the Marshall Islands Changed Circumstances Petition
7
Right Livelihood Foundation. Tony de Brum and the People of the Marshall Islands
8
Arms Control Association. Marshall Islands Lose Nuclear Cases
9
International Court of Justice. Marshall Islands v. United Kingdom, Judgment
10
International Court of Justice. Marshall Islands v. India, Dissenting Opinion of Judge Robinson
11
International Court of Justice. Marshall Islands v. India, Judgment
12
EJIL: Talk!. Capitulation in The Hague: The Marshall Islands Cases
13
Cambridge University Press. The ICJ’s Structural Bias Strikes Again in the Marshall Islands Case
14
International Court of Justice. Marshall Islands v. United Kingdom, Dissenting Opinion of Judge Cançado Trindade
15
U.S. Court of Appeals for the Ninth Circuit. Republic of the Marshall Islands v. United States
16
Congressional Research Service. Compact of Free Association: Overview
17
FSM Embassy. Compact of Free Association Amendments Act of 2024