 Three days later, Mott's division was dissolved and Mott himself demoted to command of a brigade comprising most of the remaining troops from the division.Upton's men encountered stiff Confederate resistance, but drove all the way to the parapets, where after some brief, fierce hand-to-hand action, their superior numbers carried the day and soon the Confederate defenders were driven from their trenches.Generals Lee and Ewell were quick to organize a vigorous counterattack with brigades from all sectors of the Mule Shoe, and no Union supporting units arrived.