Boxers?
Chinese anti-foreigners nationalists rebels.
Who were lead to believe they were immune to western weapons, Odd thought that, and then besieged the western powers embassy's which reached 55 days, that was most of the conflict until a relief force was sent to China to save them, oddly consisting 8 major nations which would be at each others throats for the next 70 years or so; Great Britain, The German Empire, The Imperial Russian Empire, Imperial Japan, the French Third Empire, Italy, the Austrian empire and the United States, which lead to extraditing of the Empress Dowager who supported the Boxers.
Interesting conflict.