Why did Japan deploy military forces in the Boxer Rebellion?

During the Boxer Rebellion from 1899 to 1901, Japan participated as a member of the Eight-Nation Alliance, sending troops to help lift the siege on foreign legations in Beijing. Following the conflict, Japan became one of the signatory powers of the Boxer Protocol, which imposed severe indemnities and penalties on the Qing dynasty. This military intervention formed part of Japan's broader foreign policy interactions with China during the late Qing period.

What we know

• Japan contributed military forces as part of the Eight-Nation Alliance that invaded China to lift the siege on the Legation Quarter in Beijing. [4]
• Japanese troops participated in the military intervention alongside forces from France, Germany, the United Kingdom, Italy, Austria-Hungary, Russia, and the United States. [4, 5]
• Japan signed the Boxer Protocol on September 7, 1901, which required China to pay massive indemnities over the course of 39 years. [4, 5]

Where to go next

• the bigger pictureWhat was the Eight-Nation Alliance?
• what followedHow did the Boxer Protocol affect China?
• how it workedWho were the Society of Righteous and Harmonious Fists?
• what caused itHow did the First Sino-Japanese War influence regional tensions?
• an unexpected connectionWhat was the Shimabara Rebellion?

Sources

• [1]Shimabara Rebellion (Wikidata Q696217) · CC0 1.0
• [2]Shimabara Rebellion · CC BY-SA 4.0
• [3]Boxer movement · CC BY-SA 4.0
• [4]Boxer Rebellion · CC BY-SA 4.0
• [5]Boxer Protocol · CC BY-SA 4.0