The A-Bomb Tribunal (November 13–15, 2026, Seoul) has the primary purpose of restoring the collapsed historical justice by holding the U.S. legally responsible for the atomic bombings of 1945, and restoring the human rights of Korean atomic bomb victims who were affected by Japanese colonial rule and the U.S. atomic bombings.

The A-Bomb Tribunal aims to establish the illegality of the U.S. atomic bombings in 1945 to secure the basis for condemning all nuclear threats and use as illegal today. The fact that the atomic bombings of Hiroshima and Nagasaki were illegal under the international laws in 1945 means that the use and threat of nuclear weapons today are also illegal.

The A-Bomb Tribunal aims to overcome the nuclear deterrence theory that justifies the use and threat of nuclear weapons by nuclear-weapon states, and contribute to the realization of denuclearization of the Korean Peninsula and a nuclear-free world. 

Timeline

Preliminary international forums were held for the A-Bomb Tribunal. The purpose of these forums was to establish legal grounds for defining the U.S. atomic bombings as illegal acts. Through these discussions, a solid legal foundation was established for the Tribunal to present claims and to issue a ruling that the U.S. nuclear bombings of 1945 were illegal. 

Based on the two forums that secured the international legal grounds for condemning the 1945 U.S. atomic bombings as unlawful, the A-Bomb Tribunal aims to be held in Seoul in November 2026, with Korean atomic bomb victims serving as plaintiffs.

• The First International Forum : June 7, 2023, Hapcheon, South Korea
• The Second International Forum : June 8, 2024, Hiroshima, Japan
• The International People's Tribunal on 1945 US Atomic Bombings : November 13–15, 2026, Seoul, South Korea

Partners (as of February, 2026)

Antinuclear Australia, Congolese Civil Society of South Africa, Environmentalists Against War, Global Network Against Weapons and Nuclear Power in Space, International Association of Lawyers Against Nuclear Arms (IALANA), International Fellowship of Reconciliation (IFOR), International Coalition to Ban Uranium Weapons, International League of Peoples’ Struggle (ILPS), International Peace Bureau (IPB), Japan Association of Lawyers Against Nuclear Arms (JALANA), Japan Council Against Atomic and Hydrogen Bombs (Gensuikyo), Kim Bok Dong Foundation, Korean American Peace Fund, KOREA PEACE NOW!, Merchants of Death War Crimes Tribunal, Nodutdol, Northwest Against Nuclear Weapons, Pathways To Peace, Peace Action, Peace Action New York State, Physicians for Social Responsibility Florida, SF Bay Physicians for Social Responsibility, STOP the War Coalition Philippines, The International Initiative for Peace (IIP), The Manhattan Project for a Nuclear-Free World, The Olerai Lab, The United Methodist Church — General Board of Church and Society, NuclearBan.US, Veterans For Peace, Washington Physicians for Social Responsibility, World BEYOND War — To be added