The sweeping changes will see the US quit major forums for cooperation on climate change, peace and democracy.

United States President Donald Trump has announced that he plans to withdraw the US from 66 United Nations and international organisations, including major forums for cooperation on climate change, peace and democracy.

In a presidential memorandum shared by the White House on Wednesday evening, Trump said that the decision came after a review of which “organizations, conventions, and treaties are contrary to the interests of the United States”.

The changes would see the US cease participation and also cut all funding to the affected entities, Trump added.

The list shared by the White House included 35 non-UN organisations, including notably the Intergovernmental Panel on Climate Change (IPCC), the International Institute for Democracy and Electoral Assistance and the International Union for Conservation of Nature.

Although the IPCC was included in the list of non-UN bodies by the White House, it is a UN organisation that brings together top scientists to assess the evidence related to climate change and provide periodic scientific assessments to help inform political leaders.

In addition, the White House said it was withdrawing from 31 UN entities, including the UN’s top climate change treaty body, the UN Framework Convention on Climate Change (UNFCCC), the UN Democracy Fund and the top UN entity working on maternal and child health, the UNFPA.

Several of the UN entities targeted also focused on protecting at-risk groups from violence during wars, including the UN Office of the Special Representative of the Secretary General for Children in Armed Conflict.

On Thursday, UN spokesperson Stephane Dujarric issued a statement on behalf of Secretary-General Antonio Guterres, expressing “regret” for the US withdrawal.

The statement emphasised that the US continues to have an obligation to pay duties to the UN, regardless of its pullback from various agencies.

“As we have consistently said and underscored, assessed contributions to the United Nations regular budget and the peacekeeping budget, as approved by the General Assembly, are a legal obligation under the UN Charter for all Member States, including the United States,” Dujarric said.

The statement also waved aside any concern about disruptions to UN programming.

“All United Nations entities will go on with the implementation of their mandates as given to us by Member States,” it said. “The United Nations has a responsibility to deliver for all those who depend on us, and we will continue to carry out our mandates with determination.”

Despite publicly claiming he wants the US to have less involvement in UN forums, Trump has not held back from influencing decision-making at the international level.

In October last year, Trump threatened to impose sanctions on diplomats who formally adopted a levy on polluting shipping fuels that had already been agreed to at an earlier meeting, effectively sinking the deal for 12 months.

The Trump administration also imposed sanctions on UN special rapporteur Francesca Albanese, after she published a report documenting the role of international and US companies in Israel’s genocidal war on Gaza.

In 2017, Trump also threatened to cut aid from countries that voted in support of a draft UN resolution condemning the US decision to recognise Jerusalem as the capital of Israel.

As a permanent member of the UN Security Council, the US also holds considerable power at the United Nations, as one of only five countries able to veto measures it doesn’t like, a power the US repeatedly used to block efforts to end Israel’s war on Gaza before mediating a ceasefire late last year.

Since beginning his second term in January last year, Trump has already withdrawn the US from the World Health Organization (WHO), the Paris climate agreement and the UN human rights council.

Trump also quit these three organisations during his first administration, but the withdrawals were all later reversed by the administration of former US President Joe Biden.

The US withdrawal from the WHO is set to come into effect on January 22, 2026, one year after it was ordered by the White House.

Between 2024 and 2025, the US contributed $261m in funding to the WHO, amounting to about 18 percent of the funding the organisation receives for its work encouraging global cooperation on a wide range of pressing health issues, including tuberculosis and pandemics, like COVID-19.

The Trump administration has also continued a US funding ban on the UN agency for Palestinian refugees, UNRWA, that began under Biden.