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Sierra Leone
Nuclear-weapon-free state
Has not yet joined the TPNW
Summary
Sierra Leone has not yet signed or ratified the Treaty on the Prohibition of Nuclear Weapons. It participated in the negotiation of the treaty at the United Nations in New York in 2017 and voted in favour of its adoption.
Universalisation
Sierra Leone has promoted universal adherence to the treaty, including by co-sponsoring an annual UN General Assembly resolution that calls upon all states to sign, ratify, or accede to the treaty “at the earliest possible date”.
Pre-negotiations
In 2016, Sierra Leone was an additional co-sponsor of 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”.
Sierra Leone was among 127 states that endorsed a “humanitarian pledge” in 2015–16 to cooperate “in efforts to stigmatise, prohibit, and eliminate nuclear weapons”. The pledge was instrumental in building momentum and support for convening the negotiations.
Other information
Sierra Leone is a signatory to the 1996 Treaty of Pelindaba, which established Africa as a nuclear-weapon-free zone.
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