 The Confederate and Arkansas troops fell back to the border, while Price led his Guardsmen into northwestern Missouri to attempt to recapture the state.Price's emboldened Missouri State Guard marched on Lexington, besieging Colonel James A. Mulligan's garrison at the Siege of Lexington on September 12–20.Deploying wet hemp bales as mobile breastworks, the rebel advance was shielded from fire, including heated shot.