Gall (Native American leader) Gall served with Sitting Bull during several battles, including the famous Battle of the Little Bighorn in 1876. Since the early 1980s, archaeological researchers conducted battlefield excavations after a major grass fire. Historians have been studying accounts by participating Indians and tribal oral histories. Based on these elements, a contemporary reassessment of the Battle of the Little Bighorn has given Gall greater credit for several crucial tactical decisions that contributed to the Sioux and Cheyenne's overpowering defeat of the five companies of cavalry led by Custer of the 7th Cavalry. Major Marcus Reno's initial attack on the southeast end of
George Armstrong Custer Hills region from the Sioux. When the Sioux refused to sell, they were ordered to report to reservations by the end of January, 1876. Mid-winter conditions made it impossible for them to comply. The administration labeled them "hostiles" and tasked the Army with bringing them in. Custer was to command an expedition planned for the spring, part of a three-pronged campaign. While Custer's expedition marched west from Fort Abraham Lincoln, near present-day Mandan, North Dakota, troops under Colonel John Gibbon were to march east from Fort Ellis, near present-day Bozeman, Montana while a force under General George Crook was to