Wooster was mortally wounded when the Redcoats unlimbered six artillery pieces and opened fire. Here he unlimbered with remarkable coolness and self-possession. The cavalry unlimbered a howitzer while Sawyers corralled the wagons. Confederate Chew's Battery unlimbered and opened fire on the Federal cavalrymen. He advanced the batteries into grapeshot range, unlimbered the guns, and opened fire. E Troop unlimbered and put the Italian guns out of action with seven rounds. His men regrouped and unlimbered the mountain howitzers for an advance against the Apaches. Below the arch, at the rear, is an unlimbered cannon. Mower formed his brigade in line of battle and unlimbered his artillery.