The British Band was a mixed-nation group of Native Americans commanded by the Sauk leader Black Hawk, which fought against Illinois and Michigan Territory militias during the 1832 Black Hawk War. The band was composed of about 1,500 men, women, and children from the Sauk, Meskwaki, Fox, Kickapoo, Potawatomi, Ho-Chunk, and Ottawa nations; about 500 of that number were warriors. Black Hawk had an alliance with the British that dated from the War of 1812, giving them their colloquial name. The band crossed the Mississippi River from Iowa into Illinois in an attempt to reclaim their homeland and in violation of several treaties. Subsequently, both the Illinois and Michigan Territory militia were called up and the Black Hawk War ensued.

Black Hawk, born Ma-ka-tai-me-she-kia-kiak, was a Sauk leader and warrior who lived in what is now the Midwestern United States. Although he had inherited an important historic sacred bundle from his father, he was not a hereditary civil chief. Black Hawk earned his status as a war chief or captain by his actions: leading raiding and war parties as a young man and then a band of Sauk warriors during the Black Hawk War of 1832.