After the battle-telegraph and signal service- movement by the left flankMore desperate fighting has not been witnessed on this continent than that of the 5th and 6th of May. Our victory consisted in having successfully crossed a formidable stream, almost in the face of an enemy, and in getting the army together as a unit. We gained an advantage on the morning of the 6th, which, if it had been followed up, must have proven very decisive. In the evening the enemy gained an advantage; but was speedily repulsed. As we stood at the close, the two armies were relatively in about the same condition to meet each other as when the river divided them. But the fact of having safely crossed was a victory. Our losses in the Wilderness were very severe. Those of the Confederates must have been even more so; but I have no means of speaking with accuracy upon this point. The Germania Ford bridge was  transferred to Ely's Ford to facilitate the transportation of the wounded to Washington. It may be as well here as elsewhere to state two things connected with all movements of the Army of the Potomac: first, in every change of position or halt for the night, whether confronting the enemy or not, the moment arms were stacked the men intrenched themselves. For this purpose they would build up piles of logs or rails if they could be found in their front, and dig a ditch, throwing the dirt forward on the timber. Thus the digging they did counted in making a depression to stand in, and increased the elevation in front of them. It was wonderful how quickly they could in this way construct defences of considerable strength. When a halt was made with the view of assaulting the enemy, or in his presence, these would be strengthened or their positions changed under the direction of engineer officers. The second was, the use made of the telegraph and signal corps. Nothing could be more complete than the organization and discipline of this body of brave and intelligent men. Insulated wires-insulated so that they would transmit messages in a storm, on the ground or under water — were wound upon reels, making about two hundred pounds weight of wire to each reel. Two men and one mule were detailed to each reel. The pack-saddle on which this was carried was provided with a rack like a sawbuck placed crosswise of the saddle, and raised above it so that the reel, with its wire, would revolve freely. There was a wagon, supplied with a telegraph operator, battery and telegraph instruments for each division, each corps, each army, and one for my headquarters. There were wagons also loaded with light poles, about the size and length of a wall tent pole, supplied with an iron spike in one end, used to hold the wires up when laid, so that wagons and artillery would not run over them. The mules thus loaded were assigned to brigades, and always kept with the command they were assigned to. The operators were also assigned to particular headquarters, and never changed except by special orders. The moment the troops were put in position to go into camp all the men connected with this branch of service would proceed to put up their wires. A mule loaded with a coil of wire would be led to the rear of the nearest flank of the brigade he belonged to, and would be led in a line parallel thereto, while one man would hold an end of the  wire and uncoil it as the mule was led off. When he had walked the length of the wire the whole of it would be on the ground. This would be done in rear of every brigade at the same time. The ends of all the wires would then be joined, making a continuous wire in the rear of the whole army. The men, attached to brigades or divisions, would all commence at once raising the wires with their telegraph poles. This was done by making a loop in the wire and putting it over the spike and raising the pole to a perpendicular position. At intervals the wire would be attached to trees, or some other permanent object, so that one pole was sufficient at a place. In the absence of such a support two poles would have to be used, at intervals, placed at an angle so as to hold the wire firm in its place. While this was being done the telegraph wagons would take their positions near where the headquarters they belonged to were to be established, and would connect with the wire. Thus, in a few minutes longer time than it took a mule to walk the length of its coil, telegraphic communication would be effected between all the headquarters of the army. No orders ever had to be given to establish the telegraph. The signal service was used on the march. The men composing this corps were assigned to specified commands. When movements were made, they would go in advance, or on the flanks, and seize upon high points of ground giving a commanding view of the country, if cleared, or would climb tall trees on the highest points if not cleared, and would denote, by signals, the positions of different part of our own army, and often the movements of the enemy. They would also take off the signals of the enemy and transmit them. It would sometimes take too long a time to make translations of intercepted dispatches for us to receive any benefit from them. But sometimes they gave useful information. On the afternoon of the 7th I received news from Washington announcing that Sherman had probably attacked Johnston that day, and that Butler had reached City Point safely and taken it by surprise on the 5th. I had given orders for a movement by the left flank, fearing that Lee might move rapidly to Richmond to crush Butler before I could get there. My order for this movement was as follows:
During the 7th Sheridan had a fight with the rebel cavalry at Todd's Tavern, but routed them, thus opening the way for the troops that were to go by that route at night. Soon after dark Warren withdrew from the front of the enemy, and was soon followed by Sedgwick. Warren's march carried him immediately behind the works where Hancock's command lay on the Brock Road. With my staff and a small escort of cavalry I preceded the troops. Meade with his staff accompanied me. The greatest enthusiasm was manifested by Hancock's men as we passed by. No doubt it was inspired by the fact that the movement was south. It indicated to them that they had passed through the “beginning of the end” in the battle just fought. The cheering was so lusty that the enemy must have taken it for a night attack. At all events it drew from him a furious fusillade of artillery and musketry, plainly heard but not felt by us. Meade and I rode in advance. We has passed but a little way beyond our left when the road forked. We looked to see, if we could, which road Sheridan had taken with his cavalry during the day. It seemed to be the right-hand one, and accordingly we took it. We had not gone far, however, when Colonel C. B. Comstock, of my staff, with the instinct of the engineer, suspecting that we were on a road that would lead us into the lines of the enemy, if he, too, should be moving, dashed by at a rapid gallop and all alone. In a few minutes he returned and reported that Lee was moving, and that the road we were on would bring us into his lines in a short distance. We returned to the forks of the road, left a man to indicate the right road to the head of Warren's column when it should come up, and continued our journey to Todd's Tavern, where we arrived after midnight.  My object in moving to Spottsylvania was two-fold: first, I did not want Lee to get back to Richmond in time to attempt to crush Butler before I could get there; second, I wanted to get between his army and Richmond if possible; and, if not, to draw him into the open field. But Lee, by accident, beat us to Spottsylvania. Our wagon trains had been ordered easterly of the roads the troops were to march upon before the movement commenced. Lee interpreted this as a semi-retreat of the Army of the Potomac to Fredericksburg, and so informed his government. Accordingly he ordered Longstreet's corps-now commanded by Anderson — to move in the morning (the 8th) to Spottsylvania. But the woods being still on fire, Anderson could not go into bivouac, and marched directly on to his destination that night. By this accident Lee got possession of Spottsylvania. It is impossible to say now what would have been the result if Lee's orders had been obeyed as given; but it is certain that we would have been in Spottsylvania, and between him and his capital. My belief is that there would have been a race between the two armies to see which could reach Richmond first, and the Army of the Potomac would have had the shorter line. Thus, twice since crossing the Rapidan we came near closing the campaign, so far as battles were concerned, from the Rapidan to the James River or Richmond. The first failure was caused by our not following up the success gained over Hill's corps on the morning of the 6th, as before described: the second, when fires caused by that battle drove Anderson to make a march during the night of the 7th-8th which he was ordered to commence on the morning of the 8th. But accident often decides the fate of battle. Sheridan's cavalry had had considerably fighting during the afternoon of the 7th, lasting at Todd's Tavern until after night, with the field his at the close. He issued the necessary orders for seizing Spottsylvania and holding the bridge over the Po River, which Lee's troops would have to cross to get to Spottsylvania. But Meade changed Sheridan's orders to Merritt — who was holding the bridge — on his arrival at Todd's Tavern, and thereby left the road free for Anderson when he came up. Wilson, who was ordered to seize the town, did so,  with his division of cavalry; but he could not hold it against the Confederate corps which had not been detained at the crossing of the Po, as it would have been but for the unfortunate change in Merritt's orders. Had he been permitted to execute the orders Sheridan gave him, he would have been guarding with two brigades of cavalry the bridge over the Po River which Anderson had to cross, and must have detained him long enough to enable Warren to reinforce Wilson and hold the town. Anderson soon intrenched himself — if indeed the intrenchments were not already made-immediately across Warren's front. Warren was not aware of his presence, but probably supposed it was the cavalry which Merritt had engaged earlier in the day. He assaulted at once, but was repulsed. He soon organized his men, as they were not pursued by the enemy, and made a second attack, this time with his whole corps. This time he succeeded in gaining a position immediately in the enemy's front, where he intrenched. His right and left divisions --the former Crawford's, the latter Wadsworth's, now commanded by Cutler-drove the enemy back some distance. At this time my headquarters had been advanced to Piney Branch Church. I was anxious to crush Anderson before Lee could get a force to his support. To this end Sedgwick, who was at Piney Branch Church, was ordered to Warren's support. Hancock, who was at Todd's Tavern, was notified of Warren's engagement, and was directed to be in readiness to come up. Burnside, who was with the wagon trains at Aldrich's on our extreme left, received the same instructions. Sedgwick was slow in getting up for some reason-probably unavoidable, because he was never at fault when serious work was to be done-so that it was near night before the combined forces were ready to attack. Even then all of Sedgwick's command did not get into the engagement. Warren led the last assault, one division at a time, and of course it failed. Warren's difficulty was twofold: when he received an order to do anything, it would at once occur to his mind how all the balance of the army should be engaged so as properly to co-operate with him.  His ideas were generally good, but he would forget that the person giving him orders had thought of others at the time he had of him. In like manner, when he did get ready to execute an order, after giving most intelligent instructions to division commanders, he would go in with one division, holding the others in reserve until he could superintend their movements in person also, forgetting that division commanders could execute an order without his presence. His difficulty was constitutional and beyond his control. He was an officer of superior ability, quick perceptions, and personal courage to accomplish anything that could be done with a small command. Lee had ordered Hill's corps-now commanded by Early — to move by the very road we had marched upon. This shows that even early in the morning of the 8th Lee had not yet become acquainted with my move, but still thought that the Army of the Potomac had gone to Fredericksburg. Indeed, he informed the authorities at Richmond that he had possession of Spottsylvania and was thus on my flank. Anderson was in possession of Spottsylvania, through no foresight of Lee, however. Early only found that he had been following us when he ran against Hancock at Todd's Tavern. His coming detained Hancock from the battle-field of Spottsylvania for that day; but he, in like manner, kept Early back and forced him to move by another route. Had I ordered the movement for the night of the 7th by my left flank, it would have put Hancock in the lead. It would also have given us an hour or more earlier start. It took all that time for Warren to get the head of his column to the left of Hancock after he had got his troops out of their line confronting the enemy. This hour, and Hancock's capacity to use his whole force when necessary, would, no doubt, have enabled him to crush Anderson before he could be reinforced. But the movement made was tactical. It kept the troops in mass against a possible assault by the enemy. Our left occupied its intrenchments while the two corps to the right passed. If an attack had been made by the enemy he would have found the 2d corps in position, fortified, and, practically, the 5th and 6th corps in position as reserves, until his entire front was passed. By a left flank movement the army would have been scattered while still passing the front of the enemy, and before the extreme right had got by it would have been very much exposed. Then, too, I had not yet learned the special qualifications of the different corps commanders. At that time my judgment was that Warren was the man I would suggest to succeed Meade should anything happen to that gallant soldier to take him from the field. As I have before said, Warren was a gallant soldier,  an able man; and he was beside thoroughly imbued with the solemnity and importance of the duty he had to perform.