Beijing, Tianjin, and other cities in northern China were occupied for more than one year by the international expeditionary force under the command of German General Alfred Graf von Waldersee. The German force arrived too late to take part in the fighting, but undertook several punitive expeditions to the countryside against the Boxers. Although atrocities by foreign troops were common, German troops in particular were criticized for their enthusiasm in carrying out Kaiser Wilhelm II’s words. On July 27 1900, when Wilhelm II spoke during departure ceremonies for the German contingent to the relief force in China, an impromptu, but intemperate reference to the Hun invaders of continental Europe would later be resurrected by British propaganda to mock Germany during World War I and World War II.

The Germans were not the only offenders. On behalf of Chinese Catholics, French troops ravaged the countryside around Beijing to collect indemnities—and on one occasion arresting American missionary William Scott Ament who beat them to the punch in gathering wealth from some villages.^[71] Nor were the soldiers of other nationalities any better behaved. "The Russian soldiers are ravishing the women and committing horrible atrocities" in the sector of Beijing they occupied. The Japanese were noted for their skill in beheading Boxers or people suspected of being Boxers. General Chaffee commented, "It is safe to say that where one real Boxer has been killed... fifty harmless coolies or laborers on the farms, including not a few women and children, have been slain."^[72]

The intermediate aftermath of the siege in Beijing was what one newspaper called a "carnival of loot," and others called "an orgy of looting" by soldiers, civilians, and missionaries. These characterizations called to mind the sacking of the Summer Palace in 1860.^[73] All of the nationalities in the expeditionary force engaged in looting,^[74] but each nationality accused the others of being the worst looters. An American diplomat, Herbert G. Squiers, filled several railroad cars with loot. The British Legation held loot auctions every afternoon and proclaimed, "looting on the part of British troops was carried out in the most orderly manner." The Catholic Beitang or North Cathedral was a "salesroom for stolen property."^[75] The American commander General Adna Chaffee banned looting by American soldiers, but the ban was ineffectual.^[76]

The missionaries were the most condemned. Mark Twain reflected American outrage against looting and imperialism in his essay, "To the Person Sitting in Darkness". American Board Missionary Ament was his target.^[77] To provide restitution to missionaries and Chinese Christian families whose property had been destroyed, Ament guided American troops through villages to punish Boxers and confiscate their property. When Mark Twain read of this expedition, he wrote a scathing attack on the "Reverend bandits of the American Board."^[78] Ament was one of the most respected and courageous missionaries in China and the controversy between him and Mark Twain was front page news during much of 1901. Ament's counterpart on the distaff side was doughty British missionary Georgina Smith who presided over a neighborhood in Beijing as judge and jury.^[79]

One witness recalled that "[t]he conduct of the Russian soldiers is atrocious, the French are not much better, and the Japanese are looting and burning without mercy".^[74] It was reported that Japanese troops were astonished by other Alliance troops raping civilians; Japanese officers had brought along Japanese prostitutes to stop their troops from raping Chinese civilians.^[80] Thousands of Chinese women committed suicide; The Daily Telegraph journalist E. J. Dillon stated it was to avoid rape by Alliance forces, and he witnessed the mutilated corpses of Chinese women who were raped and killed by the Alliance troops. The French commander dismissed the rapes, attributing them to "gallantry of the French soldier". A foreign journalist, George Lynch, said "there are things that I must not write, and that may not be printed in England, which would seem to show that this Western civilization of ours is merely a veneer over savagery."^[74][81]