“We are not just welcoming you as allies, but as family” – Why The Rainbow Warrior is back to Marshall Islands 40 years later


Family isn’t just about blood—it’s about standing together through the toughest of times.

This is the relationship between Greenpeace and the Marshall Islands – a vast ocean nation, stretching across nearly two million square kilometers of the Pacific. Beneath the waves, coral reefs are bustling with life, while coconut trees stand tall. For centuries, the Marshallese people have thrived here, mastering the waves, reading the winds, and navigating the open sea with their canoe-building knowledge passed down through generations. Life here is shaped by the rhythm of the tides, the taste of fresh coconut and roasted breadfruit, and an unbreakable bond between people and the sea. From the bustling heart of its capital, Majuro to the quiet, far-reaching atolls, their islands are not just land; they are home, history, and identity. 

Rainbow Warrior ship entering port in Majuro, Marshall Islands. The Greenpeace flagship vessel is in the Pacific nation for a six-week mission to elevate calls for nuclear and climate justice; and support independent scientific research into the impacts of decades-long nuclear weapons testing by the US government. The arrival of the Rainbow Warrior marks a significant moment in the shared history of Greenpeace and the Marshall Islands — 40 years since Greenpeace crew evacuated over 300 people from the Rongelap atoll to Mejatto island, after toxic nuclear fallout from the Castle Bravo test rendered their ancestral lands uninhabitable (2025). © Bianca Vitale / Greenpeace

Still, Marshallese communities were forced into one of the most devastating chapters of modern history—turned into a nuclear testing ground by the United States without consent, and their lives and lands poisoned by radiation.

Operation Exodus: A Legacy of Solidarity

Between 1946 and 1958, the U.S. conducted 67 nuclear tests in the Marshall Islands – its total yield roughly equal to one Hiroshima sized bomb every day for 12 years. During this Cold War period, the US government planned to conduct its largest nuclear test ever. On the island of Bikini, United States Commodore Ben H. Wyatt manipulated the 167 Marshallese people who called Bikini home asking them to leave so that the US could carry out atomic bomb testing, stating that it was for “the good of mankind and to end all world wars”. Exploiting their deep faith, he misled Bikinians into believing they were acting in God’s will, and trusting this, they agreed to move—never knowing the true cost of their decision

Bikini Islanders board a landing craft vehicle personnel (LCVP) as they depart from Bikini Atoll in March 1946. © United States Navy
Bikini Islanders board a landing craft vehicle personnel (LCVP) as they depart from Bikini Atoll in March 1946. © United States Navy

On March 1, 1954, the Castle Bravo test was launched – its yield 1000 times stronger than Hiroshima. Radioactive fallout spread across Rongelap Island about 150 kilometers away, due to what the US government claimed was a “shift in wind direction”. In reality, the U.S. ignored weather reports that indicated the wind would carry the fallout eastward towards Rongelap and Utirik Atolls, exposing the islands to radioactive contamination. Children played in what they thought was snow, and almost immediately the impacts of radiation began – skin burning, hair fallout, vomiting. The Rongelap people were immediately relocated, and just three years later were told by the US government their island was deemed safe and asked to return. 

For the next 28 years, the Rongelap people lived through a period of intense “gaslighting” by the US government.* 

Image of the nuclear weapon test, Castle Bravo (yield 15 Mt) on Bikini Atoll, Marshall Islands, 1 March 1954.
Nuclear weapon test Castle Bravo (yield 15 Mt) on Bikini Atoll, 1 March 1954. © United States Department of Energy

Forced to live on contaminated land, with women enduring miscarriages and cancer rates increasing, in 1985, the people of Rongelap made the difficult decision to leave their homeland. Despite repeated requests to the US government to help evacuate, an SOS was sent, and Greenpeace responded: the Rainbow Warrior arrived in Rongelap, helping to move communities to Mejatto Island. 

This was the last journey of the first Rainbow Warrior. The powerful images of their evacuation were captured by photographer Fernando Pereira, who, just months later, was killed in the bombing of the Rainbow Warrior as it sailed to protest nuclear testing in the Pacific.

Evacuation of Rongelap Islanders to Mejato © Greenpeace / Fernando Pereira
Evacuation of Rongelap Islanders to Mejato by the Rainbow Warrior crew in the Pacific 1985. Rongelap suffered nuclear fallout from US nuclear tests done from 1946 – 1958, making it a hazardous place to live. © Greenpeace / Fernando Pereira

From Nuclear to Climate: The Injustice Repeats

The fight for justice did not end with the nuclear tests—the same forces that perpetuated nuclear colonialism continue to endanger the Marshall Islands today with new threats: climate change and deep-sea mining. 

The Marshall Islands, a nation of over 1,000 islands, is particularly vulnerable to climate impacts. Entire communities could disappear within a generation due to rising sea levels. Additionally, greedy international corporations are pushing to mine the deep sea of the Pacific Ocean for profit. Deep sea mining threatens fragile marine ecosystems and could destroy Pacific ways of life, livelihoods and fish populations. The ocean connects us all, and a threat anywhere in the Pacific is a threat to the world.

Action ahead of the Climate Vulnerable Forum in the Marshall Islands. © Martin Romain / Greenpeace
Marshallese activists with traditional vessels on the coast of the nation’s capital Majuro, to demand that leaders of developed nations dramatically upscale their plans to limit global warming during the online meeting of the Climate Vulnerable Forum (2018). © Martin Romain / Greenpeace

But if there could be one symbol to encapsulate past nuclear injustices and current climate harms it would be the Runit Dome. This concrete structure was built by the US to contain radioactive waste from years of nuclear tests, but climate change now poses a direct threat. Rising sea levels and increasing storm surges are eroding the dome’s integrity, raising fears of radioactive material leaking into the ocean, potentially causing a nuclear disaster.

Aerial view of Runit Dome, Runit Island, Enewetak Atoll, Marshall Islands
Aerial view of Runit Dome, Runit Island, Enewetak Atoll, Marshall Islands. © US Defense Special Weapons Agency

Science, Storytelling, and Resistance: The Rainbow Warrior’s epic mission and 40 year celebration

At the invitation of the Marshallese community and government, the Rainbow Warrior is in the Pacific nation to celebrate 40 years since 1985’s Operation Exodus, and stand in support of their ongoing fight for nuclear justice, climate action, and self-determination.

This journey brings together science, storytelling, and activism to support the Marshallese movement for justice and recognition. Independent radiation experts and Greenpeace scientists will conduct crucial research across the atolls, providing much-needed data on remaining nuclear contamination. For decades, research on radiation levels has been controlled by the same government that conducted the nuclear tests, leaving many unanswered questions. This independent study will help support the Marshallese people in their ongoing legal battles for recognition, reparations, and justice.

Ariana Tibon Kilma from the National Nuclear Commission, greets the  
Rainbow Warrior into the Marshall Islands. © Bianca Vitale / Greenpeace
Marshallese women greet the Rainbow Warrior as it arrives in its capital, Majuro (2025). © Bianca Vitale / Greenpeace

The Path of the Ship Tour: A Journey Led by the Marshallese

From March to April, the Rainbow Warrior will sail across the Marshall Islands, stopping in Majuro, Mejatto, Enewetak, Bikini, Rongelap, and Wotje. Like visiting old family, each of these locations carries a story — of nuclear fallout, forced displacement, resistance, and hope for a just future.

But just like old family, there’s something new to learn. At every stop, local leaders, activists, and a younger generation are shaping the narrative. Their testimonies are the foundation of this journey, ensuring the world cannot turn away. Their stories of displacement, resilience, and hope will be shared far beyond the Pacific, calling for justice on a global scale.

Bunny McDiarmid and Henk Haazen reunited with the local Marshallese community at Majuro Welcome Ceremony. © Bianca Vitale / Greenpeace
Bunny McDiarmid and Henk Haazen greet locals at the welcoming ceremony in Majuro, Marshall Islands. Bunny and Henk were part of the Greenpeace crew in 1985 to help evacuate the people of Rongelap. © Bianca Vitale / Greenpeace

A Defining Moment for Climate Justice

The Marshallese are not just survivors of past injustices; they are champions of a just future. Their leadership reminds us that those most affected by climate change are not only calling for action—they are showing the way forward. They are leaders of finding solutions to avert these crises. 

Local Marshallese Women's group dance and perform cultural songs at the Rainbow Warrior welcome ceremony in Majuro. © Bianca Vitale / Greenpeace
Local Marshallese women’s group dance and perform cultural songs at the Rainbow Warrior welcome ceremony in Majuro, Marshall islands (2025). © Bianca Vitale / Greenpeace

Since they have joined the global fight for climate justice, their leadership in the climate battle has been evident. In 2011, they established a shark sanctuary to protect vital marine life. In 2024, they created their first ocean sanctuary, expanding efforts to conserve critical ecosystems. The Marshall Islands is also on the verge of signing the High Seas Treaty, showing their commitment to global marine conservation, and has taken a firm stance against deep-sea mining. They are not only protecting their lands but are also at the forefront of the global fight for climate justice, pushing for reparations, recognition, and climate action.

This voyage is a message: the world must listen, and it must act. The Marshallese people are standing their ground, and we stand in solidarity with them – just like family.

Learn their Story. Support their call for justice. Amplify their voices. Because when those on the frontlines lead, justice is within reach.

Shiva Gounden is the Head of Pacific at Greenpeace Australia Pacific

* This refers to the period from 1957 – when the U.S. Atomic Energy Commission declared Rongelap Atoll safe for habitation despite known contamination – to 1985, when Greenpeace assisted the Rongelap community in relocating due to ongoing radiation concerns. The Compact of Free Association, signed in 1986, finally started acknowledging damages caused by nuclear testing to the populations of Rongelap.



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