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PoliticsJapan

80 years on, has the world learned the lessons of Hiroshima?

Aaron Tilton
August 6, 2025

The US atomic bombing of Hiroshima on August 6, 1945, marked the dawn of the nuclear age, killing over 210,000 people in Japan within days. Today, as nations expand their increasingly destructive nuclear arsenals, observers warn that humanity may now face its greatest risk yet.

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Eighty years ago, the world changed forever with the US atomic bombings of Hiroshima and Nagasaki. Days later, Japan surrendered on August 15, 1945, bringing an end to World War II and its years of aggression across Asia.

Today, the Hiroshima Peace Memorial stands as a stark reminder of nuclear devastation. A few aging survivors still speak out, urging remembrance and expressing concern over growing support among global leaders for nuclear weapons as a form of deterrence.

While Cold War disarmament once reduced nuclear stockpiles, nine nations now possess more than 12,400 warheads. Experts warn that today's nuclear arsenals are vastly more powerful than the bomb dropped on Hiroshima, and all major powers are continuing to modernize. Emerging technologies like hypersonic missiles, AI, and space-based systems are fueling a new arms race.

Dan Smith of the Stockholm International Peace Research Institute warns that global safety has deteriorated since the Cold War's end.

His message: Everyone has a role to play in building a nuclear-free world. Stay informed, speak up, and help shape a political climate that values disarmament, so the horrors of Hiroshima remain in the past.