reportedly said, "Oh, great God! See how our men, our poor fellows, are falling." Couch ordered Howard to march his division toward the right and possibly flank the Confederate defenses his other two divisions had failed to dislodge. However the terrain did not permit any force that was marching from Fredericksburg toward Marye's Heights to attack anywhere other than at the stone wall along its base. When Howard's men attacked they were crowded back to the left, meeting the same resistance, and were repulsed. As other Union soldiers followed the II Corps in, Couch ordered his artillery to move into the field and blast the Confederates at close range. When his own artillery chief protested against exposing the gun crews in this fashion, Couch stated that he agreed but it was necessary to slow the Confederate fire in some way. The cannon stopped about 150 yards from the stone wall and opened fire, but quickly lost most of their crews and did little to slacken the enemy fire. During this time Couch moved slowly along his line of men, who were on the ground firing as best they could until nightfall. Recounting the attack on the heights on December 13, Couch wrote after the war: In the attack Couch's force suffered heavily, as did the rest of the Right Grand Division. He reported that the II Corps sustained over four thousand casualties during the Fredericksburg Campaign. French's division lost an estimated 1,200 soldiers and Hancock around 2,000. Howard lost about 850 men, 150 of which were hit on December 11 supporting the engineers at the river. That night the Union wounded remained in the field, and Couch wrote after the war what he saw: "It was a night of dreadful suffering. Many died of wounds & exposure, and as fast as men died they stiffened in the wintry air, & on the front line were rolled forward for protection to the living. Frozen men were placed for dumb sentries." Chancellorsville Following the Union defeat at Fredericksburg and the inglorious Mud March in January 1863, the commander of the Army of the Potomac—Couch's immediate superior—was again replaced. Maj. Gen. Ambrose Burnside was relieved and Maj. Gen. Joseph Hooker named to his place. Hooker reorganized the army and drew up plans for a new campaign against the Army of Northern Virginia. He wished to avoid attacking the Confederate defenses at Fredericksburg and