The
American annexation of the Philippines resulting from the
Spanish–American War stimulated a growing American interest in China for both commercial and
humanitarian reasons. The Philippines served as a convenient way point for trade with the
Qing China, and would be of use in the protection of American interests in the Pacific. The dominant problem in China at the end of the nineteenth century was its threatened partition by the Great Powers. Both the United States and the
British opposed this, and in September 1899 the United States announced it had secured agreement from the interested powers for maintenance of an
Open Door policy in their relations with China. Many Chinese resented the extensive foreign intervention in China. This discontent coalesced into the nucleus of a secret group called the Righteous Harmony Society (義和團 – Yìhétuán); Westerners called them Boxers. The Boxers, with the support of
Prince Duan, undertook a campaign against foreign influences and foreigners. By early 1900 this movement had brought much of China to the verge of revolution. Boxers in the northern provinces attacked and killed hundreds of Chinese Christians and foreigners, mostly missionaries. The wave of unrest came to an apex following the assassination of
Clemens von Ketteler, the German ambassador plenipotentiary, on June 20. The Chinese government then broke off diplomatic relations and demanded that all foreigners leave immediately, promising safe escort. About 3,500 foreigners and Chinese Christians refused to leave, and fearing for their safety, took refuge in the foreign legation compound, where they were
besieged. A composite military force of 407 men (including 56 Americans) plus about 200 civilians defended the compound. The Great Powers took immediate steps to organize a large relief expedition for Beijing, to stamp out what came to be known as the Boxer Rebellion. Although the
William McKinley administration disliked the idea of becoming involved in an international incident with overtones of entangling foreign alliances during an
election year, President McKinley agreed to join with the other powers to take steps to rescue their beleaguered nationals.
Seymour Expedition The
Seymour Expedition (10–26 June), an international column of Sailors and Marines, including 112 Americans, made a hurried attempt to relieve Beijing, but failed to get through when it met with severe resistance after it left
Tianjin, the nearest port city to Beijing.
Skirmishes around Tianjin As a result of the
Philippine–American War, the United States had forces available nearby in the Philippines, and was therefore in a position to contribute one of the larger contingents to the international relief expedition. The first American forces left the Philippines on June 14. A detachment of 107 Marines went to China to protect American lives and property; this detachment was drawn from the
1st Marine Infantry Regiment stationed at
Cavite. This detachment steamed toward Taku aboard the
USS Newark, arriving on June 18, where they joined by 32 Marines aboard the . On June 17 the United States Navy's China Squadron under Rear Admiral
Louis Kempff declined to join foreign naval forces in the
Battle of Taku Forts, which guarded the river approach to Tianjin. On July 6 the 9th Infantry Regiment arrived at Taku. Colonel
Emerson H. Liscum, commander of the 9th Infantry Regiment, disembarked the regiment's 1st and 2nd Battalions and marched on Tianjin. On 13 July 1900 elements of this force participated in the
attack on Tianjin troops from several other nations. The city of Tianjin fell to the Allies on the same day. Liscum and the flag bearer of the regiment were killed by Chinese snipers, the 9th infantry regiment suffered a ten percent casualty rate. By the beginning of August, the American forces were reinforced by the
14th Infantry Regiment, and Battery F of the
5th Artillery Regiment. Major General
Adna R. Chaffee Sr arrived in
Nagasaki, Japan, on July 24. Within two days of his arrival, General Chaffee received orders to proceed to Taku and assume command of the American forces there; his new command was designated the China Relief Expedition. Other units, including the
6th Cavalry Regiment, were deployed directly from the mainland United States. Using Manila as a base and Nagasaki as an advance port, the United States eventually assembled some 2,500 soldiers and Marines in China. ==Battle of Peking==