On December 13, 2025, the 12th National Communion Day for the Victims of the Nanjing Massacre, the Central Archives published a batch of declassified archival materials handed over by Russia to our Soviet Union to interrogate Japan's 731 forces. Some investigation records have been made public for the first time, and these war criminals have confessed to the crimes of violating international conventions and preparing and carrying out germ warfare.

On December 13, 2025, the 12th National Communion Day for the Victims of the Nanjing Massacre, the Central Archives published a batch of declassified archival materials handed over by Russia to our Soviet Union to interrogate Japan's 731 forces. Some investigation records have been made public for the first time, and these war criminals have confessed to the crimes of violating international conventions and preparing and carrying out germ warfare.