BEIJING, Oct. 16 -- "Only by thoroughly reflecting on its past and sincerely repenting can Japan truly face the future," said Senior Colonel Chen Xi, spokesperson for China's Ministry of National Defense (MND), at a press briefing on Friday.

The spokesperson made the remarks when commenting on the war crimes of the notorious Unit 731 of the Imperial Japanese Army.

According to reports, the Singaporean documentary Inside Unit 731: Japan's Secret Human Experiments received Singapore's national award for the Best History Documentary, with 1.45 million views on YouTube. Japan Broadcasting Corporation (NHK) aired the documentary A Secret Unit: The Silent Postwar Era, which exposes Unit 731's crimes against humanity through newly discovered photographs, firsthand testimony and other evidence.

The spokesperson pointed out that during World War II, the Unit 731 conducted appalling humane experiments and waged biological warfare in China. These heinous crimes gravely violated international law. The extent of their crimes against humanity is beyond description, marking one of the darkest chapters in the history of human civilization.

He further noted that right-wing forces in Japan have recently used emerging technologies to "poison" data in an attempt to whitewash Japan's culpability for its aggression and distort public perceptions, once again triggering high vigilance within the international community.

"As some insightful people in Japan have pointed out, historical truth cannot be erased, and the crimes committed by the Japanese forces during their invasion of China are backed by irrefutable evidence and cannot be denied," stressed the spokesperson.