High Quality Content by WIKIPEDIA articles! The Tientsin incident of 1931 was the operation planned by the Kwantung Army of the Empire of Japan to place Puyi on the throne of the Japanese-controlled Manchuria. The plan, orchestrated by Colonel Kenji Doihara was Colonel Itagaki Seishiro was successful, and Pu Yi was enthroned as "Emperor Datong" of Manchukuo the following year. After the Xinhai Revolution of 1912 overthrew the Qing Dynasty in China, the last Qung Emperor, Puyi, continued to live in the Forbidden City in Beijing. He was expelled by the warlord Feng Yuxiang in 1924, and found refuge within the extraterritorial Japanese concession in Tianjin.