Jinan incident
The Jinan incident (traditional Chinese: 濟南慘案; simplified Chinese: 济南惨案; Japanese: 済南事件; formerly romanised Tsinan) or 3 May Tragedy (traditional Chinese: 五三慘案; simplified Chinese: 五三惨案; pinyin: Wǔsān Cǎn'àn) began as a 3 May 1928 dispute between Chiang Kai-shek's National Revolutionary Army (NRA) and Japanese soldiers and civilians in Jinan, the capital of Shandong province in China, which then escalated into an armed conflict between the NRA and the Imperial Japanese Army. Japanese soldiers had been deployed to Shandong province to protect Japanese commercial interests in the province, which were threatened by the advance of Chiang's Northern Expedition to reunite China under a Kuomintang government.