 On May 10, during the third day of action at Spotsylvania, Mott's division was ordered to support an assault by Col. Emory Upton's brigade.The demoralized troops however never got closer than a quarter of a mile from the Confederate lines as a barrage of artillery fire sent them running.After Spotsylvania, the division, which had ceased to be a usable fighting force, was disbanded and its remnants scattered among other divisions.