A call for non-proliferation amid rising tensions
The mayor of Hiroshima, Kazumi Matsui, made a powerful plea at the city's annual peace ceremony this week. He urged global leaders to stop treating nuclear deterrence as a viable solution. Addressing the event on Thursday, Matsui warned that justifying the use of force or ignoring the brutality of nuclear weapons could set the stage for future tragedies. He said these tragedies could be like Hiroshima or Nagasaki. His speech was part of the city's 81st annual commemoration of the 1945 atomic bombing.
Thousands of people gathered at the Hiroshima Peace Memorial Park to remember the events of August 6, 1945. Around 50,000 attendees, including representatives from nearly 120 countries and regions, observed a minute of silence. They did this starting at 8:15 am, the exact hour the United States dropped the first atomic bomb. The ceremony included a ringing of the peace bell. This symbolized mourning and sent a message for global peace. Matsui urged individuals everywhere to take responsibility for learning from history. He also pushed for change.
Prime Minister’s position under scrutiny
Prime Minister Sanae Takaichi attended the ceremony for the first time in her new role. She spoke of the need to work realistically toward a world where nuclear weapons are never used. She emphasized the United Nations’ treaty aimed at preventing the spread of such weapons. But some observers are watching closely. This is because her government has shown increasing support for nuclear deterrence policies. That has led to questions about whether Japan might revisit its longstanding three postwar non-nuclear principles.
Takaichi has not ruled out reviewing the third of these principles, which states that no nuclear weapons should be brought into the country. Though she confirmed Japan still follows all three rules, she has not promised to maintain them in the future. Her stance, along with the government’s reported interest in adjusting security and defense guidelines, has raised concerns about Japan’s possible shift in nuclear policy.
Nuclear legacy and a fading memory
Japan has long relied on the United States for protection under its nuclear umbrella, which has shaped the country’s approach to nuclear weapons. This reliance has also led the government to reject efforts by survivors to join the Treaty on the Prohibition of Nuclear Weapons. Survivors argue that Japan should play a bigger role in advocating for the elimination of these weapons. However, their voices grow weaker as the number of survivors declines.
The number of survivors of the atomic bombings has dropped to 91,105, with their average age now above 86. Many worry that the memory of the attack is fading, especially since the youngest survivors are often too young to recall the horrors of that day clearly. United Nations Secretary-General António Guterres expressed concern about this in a written message. He said Hiroshima serves as a powerful reminder of resilience and the possibility of renewal, even after extreme suffering.
Guterres urged people to build a future shaped by dialogue, not division, and by cooperation, not confrontation. “Hiroshima reminds us that we can choose a different path,” he said. “We must work together for common security over individual advantage.” His message echoed the mayor’s call. He emphasized the need to learn from the past. He also stressed the need to avoid repeating its mistakes.

