Every August, thousands of visitors from Japan and around the world gather in Hiroshima and Nagasaki to commemorate the dropping of the atomic bombs. In addition to the solemn ceremonies that draw survivors and VIPs, there are numerous side events dedicated to seeking the elimination of nuclear weapons.
But while most everyone in Hiroshima and Nagasaki shares a determination to ensure that atomic weapons are never used again, long-standing, fundamental differences over nuclear power have split Japan's peace and nonproliferation movements.
Two of the main groups seeking an end to the weapons are the Japan Conference Against A- and H-Bombs (Gensuikin), and the Japan Council Against Atomic and Hydrogen Bombs (Gensuikyo). Gensuikin's activities have traditionally been supported by the Social Democratic Party and its predecessors, while Gensuikyo has been supported by the Japanese Communist Party.