Japan urged to remember its atrocities in WWII, as Nagasaki marks 73rd anniversary of atomic bombing by US

The unit became Japan's top-secret biological and chemical warfare research base and operated as the nerve center of Japanese biological warfare in China and Southeast Asia during World War II.

At least 3,000 people were used for human experimentation by Unit 731 along with a small percentage of Soviets, Mongolians, Koreans, and soldiers of the Allied Forces who had been taken captive. Some of those killed in ways unimaginable were just children.

More than 300,000 people across China were killed by Japan's biological weapons during WWII.

The notorious Unit 731 managed to keep its atrocities largely concealed due to the International Military Tribunal for the Far East not prosecuting the unit's commanders under condition they handed over the germ warfare data to the United States.

Right wing forces here have also, since the unit's abominable crimes committed before and during WWII, attempted to sequester the facts of the unit, going as far as denying its actual existence, despite an NHK documentary drawing local and international attention to the travesties and the names and positions of hundreds of those working at the unit being officially released recently.

Undoubtedly, the events that took place in Hiroshima and Nagasaki were tragic, but there were numerous more heinous incidents carried out by the Japanese army, that until this day, have received far less coverage in educational textbooks, or in globally televised memorial services.