This article aims to examine a series of events when North Korea, China, and the Soviet Union raised the allegation of 'biological warfare' against the US and allies, and its inner story by comparing and analyzing documents, letters, memoirs recorded in Korea, China, Britain, the Soviet Union, and the US during the Korean War.
This article consists of two parts. The first part examines the process of raising the allegations mainly from 1951 to 1952. The allegations of biological warfare by the US. were first raised on May 8, 1951, when Park Heon-young, a foreign minister of North Korea, issued a statement charging the US of using biological weapons but there were no ensuing allegations after that time. In 1952, the large scale propaganda of the ‘biological warfare’ allegations occurred in cooperation with North Korea, China, and the Soviet Union. Three investigation teams were, supported by those countries, also established. The second one looks into ‘evidence’ provided by communist countries was highly likely to be fabricated. This fabrication was attested to in the memoir of a head of the Chinese Army's sanitary department, Wu Zhi-ri, as also was reaffirmed in documents of the Soviet Union, implying that the origin of allegations was from China. This, however, does not necessarily mean that the allegations were entirely manipulated. China and the Soviet Union used the allegations of 'biological warfare' for the benefit of their countries. China appeared to use the allegation to gain military and medical supports from the Soviet Union. The Soviet Union intended to prolong the Korean War through the allegation in order to learn the information of US military and to lessen the possibility of World War III by draining US military power in Asia.