HIROSHIMA, JAPAN / RankWire.AI / – On Thursday, Hiroshima marked the 81st anniversary of the 1945 atomic bombing by renewing its plea for the total abolition of nuclear arsenals. Mayor Kazumi Matsui delivered a speech to survivors, their families, government representatives, and international guests at the city’s Peace Memorial Park. At 8:15 a.m., the exact moment the atomic bomb detonated over Hiroshima on August 6, 1945, a bell sounded, followed by a collective minute of silence to honor those affected by the attack and its aftermath.
During Hiroshima’s yearly Peace Declaration, Matsui challenged ongoing dependence on nuclear deterrence. He called on world leaders in nuclear-armed nations to acknowledge the humanitarian toll of atomic weapons and work toward disarmament. The mayor also urged officials to visit Hiroshima and Nagasaki and listen directly to hibakusha, the survivors of the two bombings. For decades, Hiroshima has prioritized survivor testimonies and nuclear disarmament as key themes in its annual commemorations and peace initiatives.
Approximately 50,000 individuals participated in the event, with representatives from 121 countries and regions joining alongside the European Union. Prime Minister Sanae Takaichi attended Hiroshima’s memorial for the first time as Japan’s prime minister, stating that Japan will pursue a pragmatic approach towards a world free of nuclear weapons. She emphasized the importance of the Nuclear Non-Proliferation Treaty as a crucial framework for disarmament and reaffirmed Japan’s longstanding three non-nuclear principles.
Nuclear diplomacy endures challenges
The event took place shortly after the 2026 Nuclear Non-Proliferation Treaty Review Conference concluded in May without reaching an agreement on a comprehensive final document. This marked the third consecutive NPT review to end without consensus. Matsui highlighted the current international landscape while urging nations to bolster their efforts toward nuclear disarmament. Japan supports the NPT framework but has not signed the Treaty on the Prohibition of Nuclear Weapons. Additionally, the country remains under the protection of the United States nuclear umbrella through their security alliance.
During the Hiroshima ceremony, the United Nations conveyed a message from Secretary-General António Guterres. UN disarmament chief Izumi Nakamitsu read the message on his behalf, in which Guterres pointed to widening geopolitical divisions, increasing distrust, and renewed pressure on longstanding nuclear arms controls. He also observed that reductions in global nuclear stockpiles have begun to reverse. The UN called for more diplomacy, dialogue, adherence to international law, and multilateral cooperation to promote nuclear disarmament.
The legacy of hibakusha continues to define Hiroshima
Japan officially recognizes 91,105 atomic bomb survivors, known as hibakusha, whose average age now exceeds 86. As their numbers decline, efforts to preserve their firsthand accounts of Hiroshima and Nagasaki have become more urgent. Survivors have dedicated decades to describing the impact of the explosions, fires, and radiation, while advocating for nuclear abolition. Children representing Hiroshima also took part in Thursday’s ceremony, reaffirming their commitment to peace. The city maintains memorial programs, museums, and public education initiatives to safeguard survivor testimonies.
By the end of 1945, the Hiroshima atomic bombing had claimed an estimated 140,000 lives. Three days later, the United States dropped another atomic bomb on Nagasaki, causing approximately 70,000 deaths by year’s end. Japan announced its surrender on August 15, which was followed by the formal conclusion of World War II in September. Hiroshima later established Peace Memorial Park as a hub for remembrance and peace education. Now, 81 years after the bombing, the city again places nuclear disarmament and the human toll of atomic warfare at the forefront of its message.