Yin Ju - keng Yin Ju - keng ; ( ; Wade - Giles : Yin Ju - keng , 1885 - December 1 , 1947 ) was a politician in the early Republic of China , later noted for his role as in the collaborationist Provisional Government of the Republic of China and Nanjing Nationalist Government during the Second Sino - Japanese War . Biography . Yin was a native of Pingyang County in Zhejiang province . In 1902 , he was dispatched by his wealthy father to Japan , where he studied Japanese language and enrolled at the Tokyo No . 1 High School , a preparatory school for Tokyo Imperial University in 1905 . The following year , he enrolled in the No . 7 Military Preparatory School . During his stay in Japan , he became an active member of the Tongmenghui movement to overthrown the Qing Dynasty , and also married a Japanese woman . Per the orders of Tongmenghui leader Huang Xing , he returned to China to oversee revolutionary activities in Hubei province . After the Republic of China had been established , he joined the Kuomintang . After participating in the 2nd Kuomintang party conference in 1913 , he decided to return to Japan to complete his studies at Waseda University , where he majored in law . He returned to China in 1916 , entering into service with the Beiyang Government , helping establish the Bank of China and playing an active role in opposing the Constitutional Protection Movement . After the Zhili – Anhui War , he fled briefly back to Japan . On his return to China , he found the country rapidly dissolving into warlord ism . Yin went into the service of Fengtian clique General Guo Songling , and was assigned charge of foreign affairs . However , Guo was killed months later in a revolt against Manchurian warlord Zhang Zuolin , and Yin again sought refuge on Japanese territory . In 1926 , Yin joined Chiang Kai - Shek ' s Northern Expedition , participating in the capture of Nanchang . He was appointed to the post of Communications Director for the National Revolutionary Army , and tasked with negotiations between Kuomintang forces and the Imperial Japanese Army . The following year , after the Shanghai massacre of 1927 , he entered into the service of Shanghai mayor Huang Fu as chief secretary , and was again tasked with maintaining communications and relations with the Japanese . He was the chief negotiator on the Chinese side after the Jinan Incident in 1928 . Later that year , he was recalled into service with the National Revolutionary Army . After the Shanghai Incident of 1932 , he helped negotiate the Shanghai Ceasefire Agreement Yin became commissioner of the Luantung Area of the demilitarized zone created by this Agreement in Hebei Province in 1933 . With the encouragement of Kwantung Army General Kenji Doihara , on November 15 , 1935 Yin proclaimed the area under his administration as the East Hebei Autonomous Council , and independent of the Kuomintang government . However , in July 1937 , a detachment of approximately 800 soldiers of the Chinese 29th Army under command of General Song Zheyuan and loyal to the Kuomintang ( KMT ) government , camped outside the walls of Yin ’ s capital of Tongzhou , and refused to leave despite protests from its Japanese garrison commander . Unknown to the Japanese , General Song had reached an agreement with Yin , in hope of using the Kuomintang troops to rid himself of Japanese presence in his government . The end result was a battle between the Japanese and KMT troops , mutiny of East Hopei troops against their Japanese overlords , and a subsequent massacre of the town ' s Japanese population ( see Tungchow Mutiny ) . Yin was captured by the Japanese Army after the mutiny ' s failure , but spared from execution by the Japanese through the personal intervention of Toyama Mitsuru . Allowed back to Beijing after a five - year exile in Japan , he returned to public life after the establishment of Wang Jingwei ' s Nanjing Nationalist Government , but was appointed to only a relatively minor position in Shanxi province in 1942 . Appointed to the Legal Affairs Department of the Nanjing National Government from the January 1944 , he remained dissatisfied with the positions he was assigned , and resigned from government . He returned to Beijing in June . Yin was arrested by the Republic of China after the surrender of Japan and tried for treason against the Chinese people . At his trial in Nanjing he protested his arrest vehemently , stating that everything he had done had been out of patriotism for China . His case was decided by the Supreme Court , which sentenced him to death on November 8 , 1947 . Still protesting his innocence , Yin was executed by firing squad on December 1 , 1947 at Nanjing .