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    • Fall 2017 Internship
    • Summer 2017 Internship >
      • 2017 Summer Showcase & Fundraiser
  • Books
  • Archives
  • Resource Page
    • Supplementary Research Guides >
      • Unit 731 - Guide >
        • Background of Biochemical Warfare Development
        • Imperial Japan's Chemical Warfare Development Program
        • Map of Unit 731
        • Personnel of Unit 731
        • Duties of Unit 731
        • Human Experimentation
        • [GRAPHIC] Germ Warfare Attacks
        • Cover Ups After the War
        • [OLD] Cover Ups After the War
      • Philippines' Resistance - Guide >
        • Philippines World War II Timeline
        • The Japanese Invasion & Conquest of the Philippines
        • Bataan Death March
        • Formation of Underground Philippines Resistance
        • Supplies of the Guerrilla Fighters
        • The Hukbalahap
        • Hunter's ROTC
        • Marking's Guerrillas
        • United States Army Forces in the Philippines of Northern Luzon (USAFIP-NL)
        • The Aetas
        • Chinese and Filipino-Chinese Nationalist Guerrilla Units
        • The Female Faces of the Philippine Guerrillas
      • Rising Sun Flag - Guide >
        • History of the Rising Sun Flag
        • Atrocities Committed Under the Flag
        • Rising Sun Flag in Pop Culture
      • Pinay Guerrilleras - Guide >
        • Japanese Occupation of the Philippine Islands: Pinays Answering the Call to Arms
        • The Fierce Heneralas and Kumanders of the Hukbalahap Guerrillas
        • Amazons of the Pacific Theater
        • Filipina American Veterans: Recovering the Extraordinary Feats of the Ordinary Pinays
        • The Legacy of the Asian Women Soldier
      • Fall of Singapore - Guide >
        • Singapore World War II Timeline
        • History of World War II in the Pacific
        • History of Singapore
        • Japan's Conquest in Asia
        • Japan's Invasion of the Malay Peninsula
        • Sook Ching Massacre
        • Double Tenth Incident
        • Social Changes and Challenges in Singapore
        • Voices from Syonan
        • Return to British Rule
      • Three Years and Eight Months - Guide >
        • Hong Kong before WW2
        • Buildup to World War 2
        • The Battle of Hong Kong
        • Life during 3 Years and 8 Months
        • East River Column Guerrilla Fighters
        • Prisoners of War Camps
        • End of Japanese Occupation
        • War Crimes Trials
      • Siamese Sovereignty - Guide >
        • The Land of Smiles
        • The Thai-Japanese Relationship
        • Phibun’s Domestic and International Policies
        • The Free Thai Resistance Movement
        • Post WW2 Aftermath of Thailand
      • The Khabarovsk War Crimes Trial - Guide >
        • Defendants of Khabarovsk War Crime
        • The Japanese Empire and USSR in WW2
        • The Employment of the Bacteriological Weapon in the War
        • Planning of Japan invasion to USSR
      • Unit 731 Cover-up : The Operation Paperclip of the East - Guide >
        • Establishing Manchukuo
        • The Development of Unit 731
        • Plan Kantokuen and Bacteriological Warfare
        • The Downfall of the Japanese WW2 Era
        • Three Stages of Interrogations
        • Lasting Impacts
      • Marutas of Unit 731 - Guide >
        • How did Ishii Shiro start unit 731?
        • A Beta Testing Site
        • Establishing Pingfan
        • Experiences at the Human Experimentation Complex
        • Vivisection at the Unit 731
        • Anta Testing Grounds
        • Overall Advance from the Laboratory Creations
        • The End of the War
      • Prince Konoe Memoir - Guide >
        • Who is Prince Konoe?
        • Preparation to Tripartite Pact
        • Emperor Hirohito and Prince Konoe
        • The End of Prince Konoe
      • Competing Empires in Burma - Guide >
        • What was the China-Burma-India Theater?
        • When did the China-Burma-India Theater Happen?
        • Who Fought in the China-Burma-India Theater?
        • The Second Sino Japanese War
        • Japan in the South
        • Operation U-Go
      • Battle of Shanghai - Guide >
        • The Battle of Shanghai. Background
        • Shanghai Before War
        • The First Battle of Shanghai 1932
        • Battle of Shanghai 1937
        • Aftermath of Battle for Shanghai
      • Ishi Shiro - Guide >
        • History of Biological Weapons and The Young Ishii Shiro
        • Establishment in Manchuria
        • Pingfang District - Harbin
        • Failures and Corruption
        • Post War
      • Taiwan The Israel of the East - Guide >
        • Background of Formosa
        • Industrialization of Japan
        • China During WWII
        • Taiwan under Kuomintang
        • New Taiwanese National Identity
      • Seeking Justice for Biological Warfare Victims of Unit 731 - Guide >
        • Introduction of Wang Xuan
        • Colonel Memorandum
        • The Beginning of Biological Warfare
        • The Bacteriological Warfare on China
        • Victims in Zhejiang’s Testimonies
        • After the War
      • Rice and Revolution - Guide >
        • The French Colonial Period
        • Anti-Colonial Resistance
        • The Rise of the Communist Movement
        • Imperial Japan’s Entry into Indochina
        • The Portents of Famine
        • The Famine (1944-45)
        • Legacy of the 1944-45 Vietnam Famine
      • Clash of Empires - Guide >
        • Japan’s Imperialist Origins
        • Japan’s Competition against the West: Nanshin-ron and Hokushin-ron
        • Japanese Imperialism Through the Lens of French Indochina
        • The U.S.-Japan Relations and the Pearl Harbor Attack
      • Hunger for Power and Self-SufficiencyI - Guide >
        • The Influence of War Rations on Post-War Culinary Transformations
        • How World War II Complicated Food Scarcity and Invention
        • American Military Innovations
        • Government-Sponsored Food Inventions in Europe during World War II
        • Feeding the Army: The Adaptation of Japanese Military Cuisine and Its Impact on the Philippines
        • Mixed Dishes: Culinary Innovations Driven by Necessity and Food Scarcity
      • Denial A Quick Look of History of Comfort Women and Present Days’ Complication - Guide >
        • The Comfort Women System and the Fight for Recognition
        • The Role of Activism and International Pressure
        • The Controversy over Japanese History Textbooks
        • The Sonyŏsang Statue and the Symbolism of Public Memorials
        • Activism and Support from Japanese Citizens
        • The Future of Comfort Women Memorials and Education
      • Echoes of Empire: The Power of Japanese Propaganda - Guide >
        • Brief Overview of Imperial Japan
        • Defining Propaganda
        • Propaganda Encouraging Action​
        • The Rise of Nationalism
        • The Formation of Japanese State Propaganda
        • Youth and Education
      • Shadows of the Rising Sun: The Black Dragon Society and the Dawn of Pan-Asianism - Guide >
        • Origins of the Black Dragon Society
        • The Influence of Pan-Asianism
        • Relationship with Sun Yat-sen
        • The Role in Southeast Asia
        • The Spread of Ideology and Espionage
        • Disbandment and Legacy
      • Chongqing Bombing: The Forgotten Blitz of Asia and Its Lasting Impact - Guide >
        • Introduction and Historical Background
        • The Class Divide During the Bombings
        • Resilience and Unity of Chongqing
        • Key Incidents - Great Tunnel Massacre
        • The Aftermath of the Bombings
        • Legacy and Commemoration
      • Shanghai's International Zone: A Nexus of War, Intelligence, and Survival - Guide >
        • Historical Background
        • The International Zone
        • Battles in Shanghai
        • Civilian Intelligence Efforts
        • Wartime Brutality
        • Aftermath & Legacy
    • Lesson Plans >
      • Reparations
      • Ethics in Science
      • Writing the Narrative of a Pinay Fighter
      • Privilege Journal
      • Environmental Injustices
      • Female Guerrillas
      • Hunter's ROTC
      • Scientific Advancements
      • Seeking Justice: A Humanities Lesson Plan
      • The Hukbalahap
      • Trading Immunity
      • Bataan Death March
      • Biochemical Warfare Development
  • History Remembered
Contribute

Post-War

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Destroying of Unit 731


The end of the war came as a surprise to everyone at Ishii’s Network. Unlike the United States which took its time to occupy Japan, the Soviet Union had rushed into Manchuria. On August 9th, General Yamada, the Commander in Chief of the Kwantung Army, signed an order to destroy Unit 731. The buildings were dynamited and all prisoners were cremated and their ashes cast into the Songhuajiang River outside of Harbin. No prisoners were allowed to survive.
According to one of the nurses, Akama Masako, in the final days of Unit 731, she was, 
“.... with the syphilitic mothers; the doctor in charge of our team delivered the maruta babies himself instead of having the nurses do it, as would normally be the case. At that time, he would order me to stop the blood flow from the mother to the baby. The doctor would take a sample of the blood, then I would let small quantities of blood flow intermittently, as he took successive samples. The test tubes were all lined up on the shelf. He was checking to determine the intensity of the syphilis transmitted from mother to child and the progression of the disease from the time of birth. A researcher came running in, screaming that some maruta had escaped. They were caught by the Special Forces, the team under Ishii Shiro’s brother, Ishii Takeo. Only someone who could be trusted was admitted to that team. They shot the escapees. When it came time to evacuate, we got into a train and left the unit headquarters. It was a long train, maybe twenty or thirty cars. A soldier came running to me and said that a baby was going to be born in a freight car at the end of the train. We ran back through the cars. The wife of one of the unit members was there in labor, and there were soldiers with lots of medals. Surrounded by those high-ranking officers, I delivered the baby. That was August 15, 1945. We were passing through Xinjing. The train engineer ran away and we could not move. Planes were flying overhead, keeping lookout; soldiers were around us. I was trembling in fear. This, I felt, was really war. Then, we heard the emperor’s words ending the war. We were always told to “work hard and Japan will definitely win.” When I heard that we had lost, I was sad. It grew dark. Ishii came over to us carrying a big candle and said, ‘I’m sending you all back home. When you get there, if any one of you gives away the secret of Unit 731, I personally will find you, even if I have to part the roots of the grass to do it.’ He had a fearful diabolical look on his face—my legs were shaking—and not just at me—at everyone. ‘Even if I have to part the grasses....’”

The
Devastation caused when the world’s second atomic bomb was dropped on the city of Nagasaki on 9 August 1945

During the occupation of Japan, General MacArthur became the Supreme Commander for the Allied Powers, SCAP. According to his order, the functions of the Legal Section of the GHQ were to advise him on legal issues and policies related to war crimes and to pursue war criminals. Ishii was one of the most wanted by the United States. Since the United States took its time to occupy Japan, Ishii had time to fake his death and hide some of his documents in his backyard. A newspaper had reported that Ishii was shot to death and the villagers even staged a funeral for him. However, the CIA found him at Kamo Village.

Interrogation and Escaping from Justice

An issue of Pacific Stars and Stripes from February 27, 1946 stated the following, “Lt. Gen. Shiro Ishii, head of the Japanese Medical Research Institute, which conducted experiments in certain phases of biological warfare as well as preventive medicine at Ping Fan near Harbin, Manchuria has been located and brought to Tokyo for interrogation after an intensive search by Army intelligence agencies, it was revealed by G-2 SCAP. The search for Gen. Ishii, who has been an important intelligence target, was redoubled early last month following a UP dispatch in the Communist sources with having conducted bubonic plague experiments on American and Chinese POW’s. Shortly thereafter Gen. Ishii was located by the CIC in China Prefecture. An order for him to appear for interrogation was presented to the Japanese and on Jan. 18 he was delivered to SCAP by the Japanese authorities. He was presently living in Tokyo and is not under arrest. Meanwhile, Lt. Col. A. T. Thompson of the Chemical Warfare Service, flew from Washington to Tokyo on a special order to interrogate Ishii.” However, Thompson was not a skilled interrogation officer. He had too much admiration for high ranking officers such as Ishii. This is learned from a stenographic transcript of interrogation by Lt. Colonel A. T. Thompson on February 5, 1946 of Dr. Ishii Shiro. One can see that Thompson allowed Ishii to dodge many questions. However, Thompson was able to extract information on the Ishii bacterial bomb. One can come to the conclusion that Ishii was a master politician from the manner in which he answered during interrogation.

Picture
Shiro Ishii at a reunion party of Unit 731 members after the war

In order to please the Soviet Union, the United States agreed to hand them a selected number of scientists for trial. Twelve scientists were selected to be sent to the Soviet Union for the Khabarovsk Trial. Due to the trial’s remote location and the fact that the Soviet Union was a communist state, most of the West saw the Khabarovsk trial as communist propaganda. However, the trial was actually very informative as the Soviet’s style of interrogation was able to rattle the Japanese scientists into confessing.
Dr. Ishii Shiro, after all that he had created and done for the world, lived peacefully ever after.
He died of throat cancer in 1959.
​Many of his subordinates became executives of pharmaceutical companies or held positions in the government.

Related Book

Ishii Shiro: Josef Mengele of the East book cover
Get the book!

Guide: Ishi Shiro:
​Joseph Mengele of the East

The Japanese occupation of Manchuria promised many opportunities for young scientists who wanted to utilize their training and curiosity to advance Japanese military capabilities. Recently graduated medical student Ishii Shiro seized this occasion, and with funding from the War Ministry of Imperial Japan, founded Unit 731, a biological and chemical warfare research and development arm of the IJA. With consent and funding from the military and government, he recruited the brightest minds from Japan to conduct fatal human experimentation, develop bubonic plague bombs to unleash on nearby villages, and test biological and chemical weapons. 

Within a few years, he rapidly climbed the ranks, going from Captain to General for the Imperial Japanese Army. His impact and power overshadowed his European counterpart, Josef Mengele. After the war, he faked his death, but the CIA was able to locate him. However, he negotiated immunity and was never brought to justice in what came to be known as the elaborate American coverup of Japanese war crimes.

Ishii Shiro: Josef Mengele of the East is a biography based on declassified documents found in the National Archives and Records Administration. This book includes documents from the CIA, Far East Asia Command Center, U.S. Naval Operations, the Khabavosk War Crimes Trial, and precords that survived by chance in Tokyo. 

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Failures and Corruption

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  • Home
    • About >
      • FAQ's - Frequently Asked Questions
    • Support Us >
      • Projects you can support! >
        • Distributing Books
        • Presenting at 112th Annual Meeting of Pacific Coast Branch
        • Summer Research Relocation Fund
    • Contact
  • Stories
    • Videos >
      • Black Hearts (2021)
    • Blog
    • Podcast: Forgotten History
  • Internship
    • Summer 2025 Internship
    • Spring 2025 Internship
    • Summer 2024 Internship
    • Summer 2023 Internship
    • Fall 2022 Internship
    • Summer 2022 Internship
    • Summer 2021 Internship
    • Fall 2020- Spring 2021 Internship
    • Summer 2020 Internship
    • Fall 2019 Internship
    • Summer 2019 Internship >
      • Public History Night
    • School Year 2018-2019 Internship
    • Summer 2018 Internship >
      • 2018 Summer Showcase + Fundraiser
    • Fall 2017 Internship
    • Summer 2017 Internship >
      • 2017 Summer Showcase & Fundraiser
  • Books
  • Archives
  • Resource Page
    • Supplementary Research Guides >
      • Unit 731 - Guide >
        • Background of Biochemical Warfare Development
        • Imperial Japan's Chemical Warfare Development Program
        • Map of Unit 731
        • Personnel of Unit 731
        • Duties of Unit 731
        • Human Experimentation
        • [GRAPHIC] Germ Warfare Attacks
        • Cover Ups After the War
        • [OLD] Cover Ups After the War
      • Philippines' Resistance - Guide >
        • Philippines World War II Timeline
        • The Japanese Invasion & Conquest of the Philippines
        • Bataan Death March
        • Formation of Underground Philippines Resistance
        • Supplies of the Guerrilla Fighters
        • The Hukbalahap
        • Hunter's ROTC
        • Marking's Guerrillas
        • United States Army Forces in the Philippines of Northern Luzon (USAFIP-NL)
        • The Aetas
        • Chinese and Filipino-Chinese Nationalist Guerrilla Units
        • The Female Faces of the Philippine Guerrillas
      • Rising Sun Flag - Guide >
        • History of the Rising Sun Flag
        • Atrocities Committed Under the Flag
        • Rising Sun Flag in Pop Culture
      • Pinay Guerrilleras - Guide >
        • Japanese Occupation of the Philippine Islands: Pinays Answering the Call to Arms
        • The Fierce Heneralas and Kumanders of the Hukbalahap Guerrillas
        • Amazons of the Pacific Theater
        • Filipina American Veterans: Recovering the Extraordinary Feats of the Ordinary Pinays
        • The Legacy of the Asian Women Soldier
      • Fall of Singapore - Guide >
        • Singapore World War II Timeline
        • History of World War II in the Pacific
        • History of Singapore
        • Japan's Conquest in Asia
        • Japan's Invasion of the Malay Peninsula
        • Sook Ching Massacre
        • Double Tenth Incident
        • Social Changes and Challenges in Singapore
        • Voices from Syonan
        • Return to British Rule
      • Three Years and Eight Months - Guide >
        • Hong Kong before WW2
        • Buildup to World War 2
        • The Battle of Hong Kong
        • Life during 3 Years and 8 Months
        • East River Column Guerrilla Fighters
        • Prisoners of War Camps
        • End of Japanese Occupation
        • War Crimes Trials
      • Siamese Sovereignty - Guide >
        • The Land of Smiles
        • The Thai-Japanese Relationship
        • Phibun’s Domestic and International Policies
        • The Free Thai Resistance Movement
        • Post WW2 Aftermath of Thailand
      • The Khabarovsk War Crimes Trial - Guide >
        • Defendants of Khabarovsk War Crime
        • The Japanese Empire and USSR in WW2
        • The Employment of the Bacteriological Weapon in the War
        • Planning of Japan invasion to USSR
      • Unit 731 Cover-up : The Operation Paperclip of the East - Guide >
        • Establishing Manchukuo
        • The Development of Unit 731
        • Plan Kantokuen and Bacteriological Warfare
        • The Downfall of the Japanese WW2 Era
        • Three Stages of Interrogations
        • Lasting Impacts
      • Marutas of Unit 731 - Guide >
        • How did Ishii Shiro start unit 731?
        • A Beta Testing Site
        • Establishing Pingfan
        • Experiences at the Human Experimentation Complex
        • Vivisection at the Unit 731
        • Anta Testing Grounds
        • Overall Advance from the Laboratory Creations
        • The End of the War
      • Prince Konoe Memoir - Guide >
        • Who is Prince Konoe?
        • Preparation to Tripartite Pact
        • Emperor Hirohito and Prince Konoe
        • The End of Prince Konoe
      • Competing Empires in Burma - Guide >
        • What was the China-Burma-India Theater?
        • When did the China-Burma-India Theater Happen?
        • Who Fought in the China-Burma-India Theater?
        • The Second Sino Japanese War
        • Japan in the South
        • Operation U-Go
      • Battle of Shanghai - Guide >
        • The Battle of Shanghai. Background
        • Shanghai Before War
        • The First Battle of Shanghai 1932
        • Battle of Shanghai 1937
        • Aftermath of Battle for Shanghai
      • Ishi Shiro - Guide >
        • History of Biological Weapons and The Young Ishii Shiro
        • Establishment in Manchuria
        • Pingfang District - Harbin
        • Failures and Corruption
        • Post War
      • Taiwan The Israel of the East - Guide >
        • Background of Formosa
        • Industrialization of Japan
        • China During WWII
        • Taiwan under Kuomintang
        • New Taiwanese National Identity
      • Seeking Justice for Biological Warfare Victims of Unit 731 - Guide >
        • Introduction of Wang Xuan
        • Colonel Memorandum
        • The Beginning of Biological Warfare
        • The Bacteriological Warfare on China
        • Victims in Zhejiang’s Testimonies
        • After the War
      • Rice and Revolution - Guide >
        • The French Colonial Period
        • Anti-Colonial Resistance
        • The Rise of the Communist Movement
        • Imperial Japan’s Entry into Indochina
        • The Portents of Famine
        • The Famine (1944-45)
        • Legacy of the 1944-45 Vietnam Famine
      • Clash of Empires - Guide >
        • Japan’s Imperialist Origins
        • Japan’s Competition against the West: Nanshin-ron and Hokushin-ron
        • Japanese Imperialism Through the Lens of French Indochina
        • The U.S.-Japan Relations and the Pearl Harbor Attack
      • Hunger for Power and Self-SufficiencyI - Guide >
        • The Influence of War Rations on Post-War Culinary Transformations
        • How World War II Complicated Food Scarcity and Invention
        • American Military Innovations
        • Government-Sponsored Food Inventions in Europe during World War II
        • Feeding the Army: The Adaptation of Japanese Military Cuisine and Its Impact on the Philippines
        • Mixed Dishes: Culinary Innovations Driven by Necessity and Food Scarcity
      • Denial A Quick Look of History of Comfort Women and Present Days’ Complication - Guide >
        • The Comfort Women System and the Fight for Recognition
        • The Role of Activism and International Pressure
        • The Controversy over Japanese History Textbooks
        • The Sonyŏsang Statue and the Symbolism of Public Memorials
        • Activism and Support from Japanese Citizens
        • The Future of Comfort Women Memorials and Education
      • Echoes of Empire: The Power of Japanese Propaganda - Guide >
        • Brief Overview of Imperial Japan
        • Defining Propaganda
        • Propaganda Encouraging Action​
        • The Rise of Nationalism
        • The Formation of Japanese State Propaganda
        • Youth and Education
      • Shadows of the Rising Sun: The Black Dragon Society and the Dawn of Pan-Asianism - Guide >
        • Origins of the Black Dragon Society
        • The Influence of Pan-Asianism
        • Relationship with Sun Yat-sen
        • The Role in Southeast Asia
        • The Spread of Ideology and Espionage
        • Disbandment and Legacy
      • Chongqing Bombing: The Forgotten Blitz of Asia and Its Lasting Impact - Guide >
        • Introduction and Historical Background
        • The Class Divide During the Bombings
        • Resilience and Unity of Chongqing
        • Key Incidents - Great Tunnel Massacre
        • The Aftermath of the Bombings
        • Legacy and Commemoration
      • Shanghai's International Zone: A Nexus of War, Intelligence, and Survival - Guide >
        • Historical Background
        • The International Zone
        • Battles in Shanghai
        • Civilian Intelligence Efforts
        • Wartime Brutality
        • Aftermath & Legacy
    • Lesson Plans >
      • Reparations
      • Ethics in Science
      • Writing the Narrative of a Pinay Fighter
      • Privilege Journal
      • Environmental Injustices
      • Female Guerrillas
      • Hunter's ROTC
      • Scientific Advancements
      • Seeking Justice: A Humanities Lesson Plan
      • The Hukbalahap
      • Trading Immunity
      • Bataan Death March
      • Biochemical Warfare Development
  • History Remembered
Contribute