太平洋战争爆发后，中国及世界反法西斯浪潮日益高涨，日本四面楚歌。为进行最后的垂死挣扎，日军准备大规模地进行细菌战争。为加紧鼠疫病菌试验，下令大量捕捉田鼠。为此，日本关东军曾于1945年通过伪满洲国政府，在东北强令征鼠，第七三一部队还制定了田鼠收集计划及实施要? After the outbreak of the Pacific War, the tide of anti-fascist events in China and the world has been rising day by day. In order to carry out the final dying struggle, the Japanese army is preparing for a large-scale germ warfare. To step up the test of plague bacteria, ordered a large number of capture voles. To this end, the Japanese Kwantung Army passed the Puppet Government of Manchukuo in 1945, forcing the requisitioners in the northeast and the Seventy-first Troops also set up a vole collection plan and implementation plan.