With the global outbreak of the COVID-19 pandemic, the 2020 NPT (Treaty on the Non-Proliferation of Nuclear Weapons) Review Conference that was planned to be held from April to May this year at the United Nations headquarters in New York City was postponed. In light of this situation, Mayors for Peace (President: Hiroshima Mayor Kazumi Matsui) issued a joint appeal to all signatories of the NPT and relevant UN members on April 27, which would have been the first day of the originally planned conference. The addressees of the appeal were asked to effectively use the time until the conference will be held to ensure that the agreement document is ultimately finalized by the Review Conference to be held after the postponement, and to hold sincere and constructive dialogue to make progress on nuclear disarmament. 　NGOs and other organizations from around the world created a Joint Statement from Civic Society calling for all national governments to make progress on nuclear disarmament, and sent it to signatory nations on May 11 of this year, the date that marks 25 years from the day that it was decided to indefinitely extend the treaty. Mayors for Peace agreed with the aims of the joint statement, and added its name to the list of organizations in agreement.