Hiroshima marks the 81st anniversary of the U.S. atomic bombing of the city during World War II, holding a memorial ceremony at Hiroshima Peace Memorial Park. In a peace declaration, Hiroshima Mayor Kazumi Matsui criticizes major powers for continuing to justify the possession of nuclear weapons as part of deterrence. He warns that downplaying the harm of nuclear weapons and accepting the pursuit of national interests through force can create cycles of violent retaliation that could lead to further mass casualties. Matsui also urges citizens to learn from the past and take action.

The ceremony includes a moment of silence and a peace bell at 8:15 a.m., the time of the bombing. Organizers plan for attendance by about 50,000 people, including representatives from around 120 countries and regions. Representatives from the United States and Iran are among those expected to attend, reflecting the event’s international focus on remembrance and nuclear disarmament.