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Nanjing Massacre

1937MajorContested

After taking China's capital, Japanese troops kill tens of thousands to perhaps 200,000 or more civilians and prisoners over about six weeks.

The story

Nanjing, then the capital of the Republic of China, fell to the Japanese army on December 13, 1937, after the battle of Shanghai and a rapid advance up the Yangtze. For about six weeks the occupying troops killed large numbers of Chinese prisoners of war and civilians, committed widespread sexual violence, and looted and burned parts of the city. It is known as the Nanjing Massacre or the Rape of Nanking.

The atrocity occurred inside the Second Sino-Japanese War, which grew from Japan's seizure of Manchuria in 1931 and the clash at the Marco Polo Bridge in July 1937. Chinese forces had defended Shanghai for three months, and many Japanese units arrived in Nanjing angry, stretched and poorly supplied, with officers who permitted or ordered the killing of captives. Chiang Kai-shek's government had moved its seat inland to Chongqing, leaving a rump of defenders and a city full of refugees.

A small group of foreign residents, including the German businessman John Rabe, the American missionary Minnie Vautrin and doctor Robert Wilson, set up the Nanjing Safety Zone, which sheltered some 200,000 to 250,000 civilians. Their diaries, letters and films, together with Japanese soldiers' accounts, are central evidence. After the war a Tokyo tribunal held that more than 200,000 were killed, and a Chinese tribunal in Nanjing, which executed officers including Tani Hisao in 1947, cited about 300,000. General Matsui Iwane was hanged in 1948 as the commander. Historians continue to disagree over the numbers, and the memory of the massacre still shapes relations between China and Japan.

Why it mattered

  • It became a defining memory of the Second Sino-Japanese War, uniting Chinese national feeling against Japan.
  • It was a key charge at the Tokyo war crimes trial, which convicted Japanese commanders for atrocities in China.
  • Disputes over its scale and how it is taught in schools remain a persistent source of tension between Beijing and Tokyo.
  • The international Safety Zone showed that organized civilian protection could save lives, a model for later humanitarian practice.

Contested history

Consensus: Japanese forces killed large numbers of Chinese prisoners and civilians in and around Nanjing in December 1937 and January 1938, with widespread sexual violence; the toll is estimated from tens of thousands to over 200,000.

Japanese forces committed mass killings and sexual violence in NanjingEstablished
Eyewitness diaries, foreign press, Japanese soldiers' accounts and postwar tribunals document it.
About 300,000 diedDebated
This figure comes from the 1947 Nanjing tribunal and is China's official count, but some historians consider it high given city and surrounding population data.
Between roughly 40,000 and 200,000 died, depending on the area and categories countedDebated
Most Japanese and Western scholars give figures in this range, and the Tokyo tribunal found more than 200,000.
The massacre was fabricated or is a small exaggeration of normal wartime eventsDebunked
Denial contradicts contemporary records, including those of Japanese units and neutral witnesses.

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