Bangor City Council has become the first Welsh Council to support the TPNW

Treaty on the Prohibition of Nuclear Weapons. The treaty came into force in
January and seeks to start a process for effective nuclear disarmament and
to unlock the ongoing stalemate in discussions at the Nuclear
Non-Proliferation Treaty (NPT) Review Conferences. There are currently 54
states that have ratified the TPNW, including the Irish Republic, Austria,
South Africa, New Zealand, Mexico and the Vatican State. A further 32
states have signed it and are in the process of ratifying it. To date over
400 towns, cities, counties and federal states have passed TPNW
resolutions, including Paris, Berlin, Oslo, Barcelona, Washington DC,
Sydney, Amsterdam, Bruges, Geneva, Montreal, Hiroshima and Nagasaki.

Nation Cymru 1st May 2021

https://nation.cymru/news/council-becomes-first-in-wales-to-support-new-nuclear-disarmament-treaty/