@article{oai:ushimane.repo.nii.ac.jp:00001754, author = {鹿, 錫俊 and LU, Xijun}, journal = {北東アジア研究, Shimane journal of North East Asian research : North East Asian region}, month = {Mar}, note = {特集, There were two puzzles in the relations history of three countries, China, Japan, and the Soviet Union in the 1930s. First, why was the secret about Chen Lifu's visit to the Soviet Union for joint anti-Japanese in late 1935 revealed? Second, why didn't Japan, which has been informed of the secret, take a tough policy that would worry the National Government of China?  This paper gives answers to the two questions above with the historical materials of China, Japan, and the Soviet Union for reference. First, the reason for revealing Chen's visit was not the Japanese spies’ activities, but the whistleblowing of He Jian, Chairman of the Hunan Provincial Government, i.e., "internal whistleblowing". Second, there were three reasons causing Japan not to take a tough policy: 1. The names of Chen Lifu and Chen Guofu confused He Jian; 2. The Sino-Soviet relations cooled around the issues such as the Communist Party of China in the middle of March 1936 when He Jian snitched; 3. Since late March 1936, the Sino-Soviet relations were further aggravated by the impact of the Mutual Assistance Protocol between the Soviet Union and Mongolia, and at the same time, the National Government was planning to get close to Japan. The three reasons above jointly made Japan think that it was unnecessary to take a hard line on China.  At last, the reveal of the secret was nothing but an important reason for the termination of Chen Lifu's plan to visit the Soviet Union, and the deterioration of the Sino-Soviet relations and Chiang Kai-Shek's misjudgment on the relations between Japan and the Soviet Union after the February 26 Incident was also an important background. Therefore, it is necessary to pay attention to the complicacy and versatility of the relations among China, Japan and the Soviet Union when this internal whistleblowing and Japan's responses were observed and discussed.}, pages = {37--51}, title = {陳立夫訪ソをめぐる日中ソ関係史の謎解き : 秘密はなぜ漏洩したのか、日本はなぜ柔軟に対応したのか}, volume = {29}, year = {2018} }