Russian prisoners of war line up in the compound of a German prison camp in preparation for their weekly baths. The Russians referred to this activity as "Blue Monday." The Russians had a reputation for attempting to avoid baths, since this was a custom alien to many of them (Russian baths were significantly different). The Germans, however, required prisoners to bathe regularly to eliminate potential sources of disease.
Germany, Hygiene, Baths, Russian POWs, World War 1914-1918