HARBIN, Sept. 17 (Xinhua) — A launch ceremony for 2 books on the crimes of Unit 731 was held on the Exhibition Hall of Evidence of Crimes Committed by Unit 731 of the Japanese Imperial Army in Harbin on Wednesday. With the newest analysis protecting transnational verification, oral histories, and multilingual archives, the 2 books document the crimes of Unit 731 and expose Japan’s wartime atrocities.

