Though regular Confederate troops staged some large-scale raids into Missouri, the fighting in the state for the next three years consisted chiefly of guerrilla warfare. "Citizen soldiers" or insurgents such as Captain William Quantrill, Frank and Jesse James, the Younger brothers, and William T. Anderson made use of quick, small-unit tactics. Pioneered by the Missouri Partisan Rangers, such insurgencies also arose in portions of the Confederacy occupied by the Union during the Civil War. Historians have portrayed stories of the James brothers' outlaw years as an American "Robin Hood" myth. The vigilante activities of the Bald Knobbers of the Ozarks in the 1880s were an unofficial continuation of insurgent mentality long after the official end of the war, and they are a favorite theme in Branson's self-image.