Later that night, the Japanese bombarded nearby Chinese barracks. This year marks the 80th anniversary of the victory in the war of resistance, during which China suffered 35 million casualties. Historical records suggest that between 1940 and 1945, at least 3,000 people were used in human experiments by Unit 731. Wang Xuancai, an 82-year-old relative of a victim of Unit 731's germ warfare, watched the film at its premiere. His uncle, a soldier, was arrested by the Japanese military and sent to Unit 731 for human experiments, before dying at only 25.