A pair of grim 80th anniversaries will be observed next week. Taken as a pair, their historical significance resonates down to this day and age. So does intense debate about the many reasons and circumstances surrounding them.

The arguments revolve around the controversial decisions by U.S. President Harry Truman to drop not one but two atomic bombs on Japan on Aug. 6 and Aug. 8 in 1945 as World War II in the Pacific Theater slowly edged toward a bloody conclusion.

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John Horgan began writing a neighborhood diary at the tender age of 9 in San Mateo. He’s been doing much the same thing as a Peninsula journalist for decades ever since. You can contact him by email at johnhorganmedia@gmail.com.

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(4) comments

Terence Y

Thanks for your column today, Mr. Horgan, and a list of well-researched books. Is there a favorite among your list? Perhaps the overriding question now should be whether the dropping of those two bombs have kept the world in check by resisting urges to drop nuclear bombs on anyone else. Peace through strength in action? I’d like to hope so. I’m waiting on books, if they’re not already out, either second-guessing or supporting the recent actions in Iran to hobble their nuclear program. Perhaps this action prevented nuclear bombs dropping on anyone else?

Dirk van Ulden

Interesting to note that we always seem to remember the number of Japanese that were killed by the nuclear bombs. Nowhere mentioned, for example, are the hundreds of thousand of Filipinos that were murdered by the Japanese, the hundreds of thousands of other islanders that disappeared. The bottom line remains that had the Japanese access to such weapons they would have been thrilled to destroy our major cities. No quarter for them at all! Truman did the right thing for us and the rest of the world. I have also read many books on this topic and after finishing each one I was even more convinced that the Japanese fully deserved this punishment. Ironically, the true war criminal, Emperor Hirohito, managed to save his skin by convincing us that Japan would never surrender if he were held accountable for his actions. That is the remaining controversy.

willallen

the emperor is still there.

Ariolimax

From the 1940s to 1980s, traditionalist historians held sway, mirroring the U.S. public’s strong support for the atomic bombings of Japan (85% approval in 1945, per Gallup). They argue Truman’s decision was driven by the urgent need to end World War II, avoid a costly invasion, and counter Soviet influence. Revisionist views, sparked by Gar Alperovitz’s 1965 book Atomic Diplomacy, gained traction during the Vietnam War era, fueled by anti-war sentiment and skepticism of U.S. motives. By 2025, Pew Research shows approval of the bombings has fallen to 35%, reflecting growing doubts about the traditionalist narrative, particularly among younger scholars.

In my view, traditionalists better capture the 1945 context—public pressure, military casualty estimates (e.g., 500,000 for an invasion), and geopolitical fears of Soviet expansion. Revisionists, leveraging declassified documents like MAGIC intercepts, argue Japan was near surrender, but their critiques often suffer from hindsight bias, judging Truman’s choices with post-war knowledge unavailable at the time. It’s like critiquing a poker player’s bet after seeing all the cards. Their work pushes for critical reexamination of U.S. actions, but some alternatives they propose (e.g., a demonstration bomb) were impractical in the moment.

Looking ahead, I worry that narratives may shift further, potentially overshadowing events like Pearl Harbor or D-Day with a focus on U.S. wartime actions like Hiroshima, framing them solely as atrocities. This risks distorting the broader context of World War II’s complexities.

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