Pyongyang, October 3 (KCNA) -- Traces of Japan's blood-stained past crimes are being disclosed one after another. Recently Russia opened to public an old document proving that Japan used germ weapons against the Soviet Union in the battles near the Khalkhin-Gol River in August 1939. The document is a record on interrogation of a noncommissioned officer of Unit 731 captured after the battle of Khalkhin-Gol. According to it, the Japanese army committed a crime of spreading typhoid germ on several occasions by the river during the retreat to pollute the area where the Red Army units were concentrated. The data proving the germ warfare of Japan were disclosed by testimonies of survivors in May and August. Japan inflicted a miserable death upon innocent people through the development and use of biochemical weapons during the Second World War. This is a hideous crime against humanity that can never be covered up. The data on the germ warfare and living-body tests of Unit 731 of the Japanese Army, which have been disclosed so far, are unprecedented in history, stunning the world people. From 1932, the murderers conducted cruel living-body tests including human anatomy, freezing experiment and germ infusion experiment on Koreans, Chinese and Russians, and thus actively served the Japanese imperialists in realizing their ambition for the "Greater East Asia Co-Prosperity Sphere". The dark tentacles of the Japanese war criminals obsessed with revanchism were also stretched deep to the root of the barbarous germ warfare committed by the U.S. imperialists against the Korean people during the last Korean War. The chemical weapons left by the secret germ warfare units of the Imperial Japanese Army such as units 731, 100, 516 and Nami 8604 after the defeat of Japan in the occupied areas still cause serious damage to the precious lives of inhabitants and the regional ecological environment. That's why the international community has bitterly denounced Japan for shamelessly evading its historical, political and legal responsibility that can never be shifted onto others. The damage by biochemical crimes is to be rapidly spread to all mankind, going beyond a specific country and region. Nevertheless, the Japanese reactionaries are working hard to repeat another hideous unethical crime, not content with embellishing their past crimes. Shortly ago, they shamelessly blustered that they would discharge the nuclear-contaminated water twice additionally this year. They have already released tens of thousands of tons of nuclear-contaminated water in the Pacific from last year. The descendants of the germ warfare criminals, who inflicted untold pain and misfortune upon the people in the region, are now working hard to make the whole world and mankind experimental fields and subjects for their purposes. The hideous crimes against humanity which can be committed only by the barbarians under the mask of human beings are the same now as they were in the days gone. The "hideous crime-woven state" is a proper name and pronoun of shameless Japan as an unpardonable war criminal.