After a loss of from fourteen to fifteen thousand men on each side, Lee remained in his intrenchments and Grant still moved on toward Richmond. The armies met at Spottsylvania Court-House, and here was fought one of the bloodiest battles of the war, with about the same loss as in the Wilderness. Sometimes the conflict was hand to hand, men using their guns as clubs, being too close to fire. In one place a tree, eighteen inches in diameter, was cut entirely down by musket balls. Grant wrote to Washington, May 11: "We have now ended the sixth day of very hard fighting. The result up to this time is much in our favor. But our losses have been heavy, as well as those of the enemy. We have lost to this time eleven general officers killed, wounded, and missing, and probably twenty thousand men. I think the loss of the enemy must be greater. We have taken over four thousand prisoners in battle, whilst he has taken from us but few except a few stragglers. I am now sending back to Belle Plain all my wagons for a fresh supply of provisions and ammunition, and purpose _to fight it out on this line if it takes all summer_." After this came the battles of Drury's Bluff, North Anna, Totopotomoy, and Cold Harbor, with its brilliant assault and deadly repulse, with a loss of from ten to fourteen thousand men on the latter field. Lee had now been driven so near to Richmond, and the swamps of the Chickahominy were so impassable, that Grant determined to move his army, one hundred and fifteen thousand men, south of the James River and attack Richmond in the rear. The move was hazardous, but he reached City Point safely. General Butler here joined him, and the siege of Petersburg, twenty miles below Richmond, began, and was continued through the winter and spring. On July 30, 1864, a mine was exploded under one of the enemy's forts. The gallery to the mine was over five hundred feet long from where it entered the ground to the point where it was under the enemy's works. Eight chambers had been left, requiring a ton of powder each to charge them. It exploded at five o'clock in the morning, making a crater twenty feet deep and about one hundred feet in length. Instantly one hundred and ten cannon and fifty mortars commenced work to cover our troops as they entered the enemy's lines. "The effort," says Grant, "was a stupendous failure. It cost us about four thousand men, mostly, however, captured, and all due to inefficiency on the part of the corps commander and the incompetency of the division commander who was sent to lead the assault." Meanwhile Sheridan had destroyed the power of the South in the Shenandoah valley. Again the army began its march toward Richmond. On April 1, 1865, the battle of Five Forks was fought, nearly six thousand Confederates being taken prisoners; then Petersburg was captured, and on April 3 General Weitzel took possession of Richmond, the enemy having evacuated it, the city having been set on fire before their departure.