Missouri was filled with bitter sentiment over the Civil War. Governor Claiborne Jackson had a plan to seize the St. Louis Arsenal and arm a pro-secessionist force. Former governor and Mexican-American War hero Sterling Price commanded the Missouri State Guard charged to protect the state from Federal troops. The disagreements led to ten military actions, causing hundreds of casualties before First Bull Run in the East. The state guard garnered a series of victories before losing control to the Union in 1862. Guerrilla and bushwhacker bands roamed the state at will. Author Joseph W. McCoskrie Jr. details the fight for the Show Me State.