Hancock suffered from the effects of his Gettysburg wound for the rest of the war. After recuperating in Norristown, he performed recruiting services over the winter and returned in the spring to field command of the II Corps for Lt. Gen. Ulysses S. Grant's 1864 Overland Campaign, but he never regained full mobility and his former youthful energy. Nevertheless, he performed well at the Battle of the Wilderness and commanded a critical breakthrough assault of the Mule Shoe at the "Bloody Angle" in the Battle of Spotsylvania Court House on May 12, shattering the Confederate defenders in his front, including the Stonewall Brigade. His corps suffered enormous losses during a futile assault Grant ordered at Cold Harbor.