Did not participate in TPNW negotiations
Has not yet joined TPNW
Ukraine has not yet signed or ratified the Treaty on the Prohibition of Nuclear Weapons.
Ukraine 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.
Ukraine abstained from voting on 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, Ukraine joined the United States and several other states in protesting the treaty-making process.
In 2016, Ukraine was absent for the vote on 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”.
Upon the break-up of the Soviet Union in 1991, Ukraine inherited several thousand Soviet nuclear warheads, which it subsequently transferred to Russia.
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Ukrainian Physicians for the Prevention of Nuclear War
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