Nuclear-weapon endorser

Did not participate in TPNW negotiations

Has not yet joined TPNW

Denmark supports the retention and potential use of nuclear weapons on its behalf, as indicated by its endorsement of various alliance statements of the North Atlantic Treaty Organisation (NATO), of which it is a member.

Denmark has not yet signed or ratified the Treaty on the Prohibition of Nuclear Weapons. It did not participate in the negotiation of the treaty at the United Nations in New York in 2017 and thus did not vote on its adoption.

Denmark voted against a UN General Assembly resolution in 2019 that welcomed the adoption of the treaty and called upon “all states that have not yet done so to sign, ratify, accept, approve, or accede to the treaty at the earliest possible date”.

On the opening day of the TPNW negotiating conference in 2017, it joined the United States and several other states in protesting the treaty-making process.

In 2016, Denmark voted against the UN General Assembly resolution that established the formal mandate for states to commence the negotiations in 2017 on “a legally binding instrument to prohibit nuclear weapons, leading towards their total elimination”.

In a “non-paper” sent to NATO members ahead of the vote, the United States “strongly encourage[d]” members, including Denmark, to vote against the resolution, “not to merely abstain”. In addition, it said that, if the treaty negotiations do commence, allies and partners should "refrain from joining them”.

In the past, Denmark had called for intensified efforts to outlaw nuclear weapons in light of their unacceptable humanitarian consequences.

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There are currently no elected representatives or local or regional bodies in this country committed to supporting the TPNW through the ICAN Cities Appeal or ICAN Parliamentary Pledge. Find out what you can do to support the TPNW in this country.


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  • Danish Physicians for the Prevention of Nuclear War


  • CRAS Ensemble 


  • International Federation of Medical Students' Associations


  • Fredsministerium


  • Århus mod Krig og Terror (Århus City against War and Terrorism)


  • FredsVagten ved Christiansborg


  • NOAH Friends of the Earth Denmark


  • Kvindernes Internationale liga for Fred og Frihed (WILPF)


  • Aldig Mere Krig (War No More)