Sierra Leone

Nuclear-weapon free state

Voted in favour of adopting TPNW

Has not yet joined TPNW

Sierra Leone has not yet signed or ratified the Treaty on the Prohibition of Nuclear Weapons.

Sierra Leone participated in the negotiation of the treaty at the United Nations in New York in 2017 and voted in favour of its adoption.

Sierra Leone has promoted universal adherence to the treaty, including by co-sponsoring a UN General Assembly resolution in 2019 that calls upon all states to sign, ratify, or accede to the treaty “at the earliest possible date”.

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.

Sierra Leone is a signatory to the 1996 Treaty of Pelindaba, which established Africa as a nuclear-weapon-free zone.

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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.