北京議定書
The Boxer Protocol was signed on September 7, 1901, between the Qing Empire of China and the Eight-Nation Alliance that had provided military forces (including Austria-Hungary, France, Germany, United Kingdom, Italy, Japan, Russia, and the United States as well as Belgium, Spain, and the Netherlands); after China's defeat in the intervention to put down the Boxer Rebellion. It is often regarded as one of the Unequal Treaties.