Unit 731 was set up in 1938 in Japanese-occupied China with the aim of developing biological weapons. It also operated a secret research and experimental school in Shinjuku, central Tokyo.

During the war, the Japanese Imperial Army used biological weapons developed and manufactured by Unit 731’s laboratory in Harbin throughout China, killing or injuring an estimated 300,000 people.

Yoshio Shinozuka, 69, of Yokaichi City, east of Tokyo, was a 15-year-old Imperial Army Youth Corps cadet when he was assigned to Unit 731 in Manchuria in May, 1939.

When it became apparent that Japan would be defeated, Japanese soldiers destroyed the headquarters of Unit 731. The Chinese later rebuilt some of the main buildings and began setting up a museum in 1982.

The documentaries presented below reveal some impressive images and facts about the infamous place – Unit 731, the spot of one of the less known atrocities of the 20th century, committed by the Imperial Japanese Army’s Unit 731.

Today, inside the building is the Unit 731 Museum, which displays black-and-white photographs and relics from that period donated by locals to remind people of the horrible experiments performed here during World War II, when it was the …