HARBIN, Sept. 17 (Xinhua) -- A launch ceremony for two books on the crimes of Unit 731 was held at the Exhibition Hall of Evidence of Crimes Committed by Unit 731 of the Japanese Imperial Army in Harbin on Wednesday. With the latest research covering transnational verification, oral histories, and multilingual archives, the two books record the crimes of Unit 731 and expose Japan's wartime atrocities.














