Inside The Horrifying History Of Japanese War Crimes During World War II

Published April 12, 2023
Updated March 12, 2024

The Torture And Execution Of Allied POWs

Captive American Pilot

Universal History Archive/Universal Images Group via Getty ImagesA captive U.S. pilot, blindfolded by Japanese captors. 1942.

Though the Geneva Convention had already established protections for prisoners of war, the Japanese often flouted these rules. Over the course of World War II, they frequently tortured and executed Allied prisoners.

As History Collection reports, Allied POWs were subjected to torture like being forced to drink copious amounts of water until they lost consciousness. Someone would then jump on their abdomen, forcing the water out. There were also accounts — unproven — of the Japanese tying POWs onto beds of sharp bamboo, which grew quickly and impaled them.

Allied POWs were also sometimes subjected to gruesome medical experiments. They were injected with horse blood or seawater, or left to freeze so that Japanese doctors could study the impact of frostbite. Usually, these “experiments” were nothing more than prolonged executions.

Rescued POW From Japanese Prison Camp

Keystone/Getty ImagesAn emaciated prisoner of war rescued from a Japanese prison camp. September 1945.

Indeed, many POWs were summarily massacred.

“Four of our group escaped,” Tech. Sgt. Richard Henry Peterson said, per the U.S. Army. “I — along with three other men — was taken to the Japanese commander. He alternated [between] questioning and beating us with a belt and a bamboo stick from 8 in the morning until 3 in the afternoon. The four of us denied knowing anything about the escape. Actually, we knew everything. We were finally taken back to our compound and the guards took our four top officers to the commander. We saw a Jap firing squad take them out of sight and heard the shots as they were executed.”

As the Allied victory grew ever more certain, scores of POWs were executed. In Puerto Princesa in the Philippines, 150 POWs were doused in gasoline, set on fire, and shot by machine guns. Just 11 men survived that massacre.

Later on, a number of Japanese officers were found guilty of war crimes because they’d approved the torture and execution of Allied POWs. However, many of them eventually received pardons.

author
Kaleena Fraga
author
A senior staff writer for All That's Interesting since 2021 and co-host of the History Uncovered Podcast, Kaleena Fraga graduated with a dual degree in American History and French Language and Literature from Oberlin College. She previously ran the presidential history blog History First, and has had work published in The Washington Post, Gastro Obscura, and elsewhere. She has published more than 1,200 pieces on topics including history and archaeology. She is based in Brooklyn, New York.
editor
Jaclyn Anglis
editor
Based in Brooklyn, New York, Jaclyn Anglis is the senior managing editor at All That's Interesting, where she has worked since 2019. She holds a Master's degree in journalism from the City University of New York and a dual Bachelor's degree in English writing and history from DePauw University. In a career that spans 11 years, she has also worked with the New York Daily News, Bustle, and Bauer Xcel Media. Her interests include American history, true crime, modern history, and science.
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Fraga, Kaleena. "Inside The Horrifying History Of Japanese War Crimes During World War II." AllThatsInteresting.com, April 12, 2023, https://allthatsinteresting.com/japanese-war-crimes. Accessed August 2, 2025.