at the Opening Session, Session 1: Bringing the voices of the Hibakusha to the world: Deepening the understanding and awareness of the inhumanity of nuclear weapons through the witnesses of Hiroshima/Nagasaki Hibakusha and nuclear test victims and the result of experts' researches, and exploring the way to inform the international public of them; Developing the movement for achieving compensation and support for the victims and environmental remediation. Hiroshima, 3rd August 2025