1931年“九·一八”事变后,日本参谋本部制定了《日本关东军对苏作战纲要》,妄图以我国东北地区为战略后方,侵略苏联。为了造成对苏进攻势态,做好对苏作战准备,关东军在中苏边境划设了东部正面、东北部正面、北部正面和西部正面四个作战区域,并于1932年至1945年分3期在南起吉林珲春、北至内 After the Incident of September 18, 1931, the Japan General Staff Headquarters formulated the “Outline of the Japanese Kwantung Army against the Soviet Union,” in an attempt to invade the Soviet Union behind the strategic northeast of our country. In order to make the offensive to the Soviet Union and to prepare for the Soviet operation, the Kwantung Army laid out four frontal and eastern frontages, the north-east frontage and the north-west frontal four combat zones on the Sino-Soviet border. In the period from 1932 to 1945, Hunchun in the south from Jilin, north to the inside