The Sanyuanli incident was a military conflict between regular troops of the British Army and an irregular force made up of Chinese militia and local citizens that took place around Sanyuanli village on the outskirts of Canton (now Guangzhou) on the 29 May 1841 after the Second Battle of Canton at the time of the First Opium War (1839-1842). Regarded by the British as a minor skirmish, to the Chinese it is regarded as a live example of a spontaneous uprising by the indigenous Chinese people in response to the actions of an actively aggressive invading foreign power since 1644.