Boxer Rebellion - Facts & Summary - HISTORY.com

"By the late 1890s, a Chinese secret group, the Society of Righteous and Harmonious Fists (“I-ho-ch’uan” or “Yihequan”), had begun carrying out regular attacks on foreigners and Chinese Christians. (The rebels performed calisthenics rituals and martial arts that they believed would give them the ability to withstand bullets and other forms of attack. Westerners referred to these rituals as shadow boxing, leading to the Boxers nickname.) Although the Boxers came from various parts of society, many were peasants, particularly from Shandong province, which had been struck by natural disasters such as famine and flooding. In the 1890s, China had given territorial and commercial concessions in this area to several European nations, and the Boxers blamed their poor standard of living on foreigners who were colonizing their country."

Did you know there were a 131 American military casualties in this conflict? I had to look that up under a different source but I found it rather interesting the only mention was us returning money.