IIDA, Nagano Prefecture—Hideo Shimizu has been frustrated by the reluctance of a peace memorial museum here to display panels about the infamous Unit 731, where he worked during World War II.

Shimizu found himself explaining to his wife more details about the building than what the museum offered. The building was the headquarters in China of the Imperial Japanese Army’s Unit 731.

Japanese doctors from the secret military Unit 731 avoided responsibility for their inhumane experiments. They escaped ...

A Chinese movie featuring the Imperial Japanese Army's notorious Unit 731 is expected to be released in China this summer, according to local media reports, with the Japanese government worried about ...

What’s really scary is, I don’t have any nightmares of what I’ve done.” —Ken Yuasa, Japanese army doctor Unit 731 was a Japanese research program during World War II that conducted horrific ...