“Dead men and plenty here – and I saw plenty of them in all shapes on the field – Help to wound & Kill men then Patch them up I could show more suffering here in one second than you will see in a Life…” Elbert Corbin, Union Soldier at Gettysburg 1st Regiment, Light Artillery, N. Y. S. Volunteers (Pettit’s Battery) 
“In great deeds something abides. On great fields something stays. Forms change and pass; bodies disappear, but spirits linger, to consecrate ground for the vision-place of souls.” 
“The day after the battle began muggy and cloudy, and there was a tremendous rainstorm”  as the Army of Northern Virginia and Army of the Potomac licked their wounds on the bloodstained Gettysburg battlefield on July 4th 1863. Both armies had suffered severely in the fighting and around 50,000 soldiers from both sides lay dead, dying or wounded on the battlefield. It was a somber day, the sweltering heat sunshine which had bathed the battlefield as Longstreet’s’ Corps attacked Cemetery Ridge was now broken by heavy rain and wind. The commanders of both armies, General Robert E Lee and Major General George Mead attempted to discern the others intent while making their own plans.
Early in the morning, or rather very late the night of July 3rd, General Robert E. Lee called Brigadier General John Imboden, to his headquarters to discuss the withdraw of the Army of Northern Virginia from the place of its defeat. Lee had spent the evening of July 3rd with Longstreet they “rode together along the lines on Seminary Ridge and conferred with other generals.” 
When Lee arrived to meet Imboden the brigadier felt the need to say something and said to Lee: “General, this has been a hard day on you.”  Lee waited some time before replying mournfully, “Yes, it has been a sad, sad day for us” and then praised the conduct of Pickett’s men saying “I never saw troops behave more magnificently than Pickett’s division of Virginians did today in that grand charge upon the enemy.” He continued and lamented what he believed to be the lack of support from the rest of the army, then paused and “exclaimed in a voice that echoed loudly and grimly through the night, “Too bad! Too bad! Oh, too bad!”  It was a strange thing to say, and showed his inability to comprehend the strength and tenacity of his opponent on that final day of battle, and just how his own decisions, including the fact that “he had denied Hill’s permission to throw his whole corps into the assault,”  contributed to his defeat.
Lee realized, that unless “he could somehow entice Meade into counterattacking along his Seminary Ridge line, he must get the army back to Virginia with all speed. There was only enough ammunition for one battle, if that…and lee had to consider that Meade might aggressively seek to cut the routes south to the Potomac.”  Thus he wasted little time in preparing the army for its return. Lee “chose his routes, decided on the order of march, and then, despite the lateness of the hour and his bone-deep weariness after three days of failure and frustration, went in person to make certain that his plans were understood by the responsible commanders.”  He felt, if not in his words, but in his actions, that he had been failed by his subordinates. He was now aware that the method of command he had employed so successfully with Stonewall Jackson had failed, and in “the task of saving his army, he trusted no one with any discretion at all.”  Unlike “the vague and discretionary orders he had issued throughout the week leading up to battle and even during the past three days of fighting…his instructions were now written and precise….”  Meade explained “that he had not wanted to follow “the bad example [Lee] had set me, in ruining himself attacking a strong position.”  In not attacking Meade was probably correct, despite the criticism he received from contemporaries and later commentators. Lee’s army, though defeated was not broken and held good ground on July 4th, likewise the lack of supplies, exhaustion of his troops and foul weather would likely have doomed any attack. Instead he told a cavalry officer “We have done well enough…” 
About 1:00 P.M. on the 4th Imboden’s troopers escorting the ambulance trains carrying the wounded began to withdraw. As they did “a steady, pounding rain increased Imboden’s problems manifold, yet by 4 o’clock that afternoon he had the journey under way. He estimated this “vast procession of misery” stretched for seventeen miles. It bore between 8,000 and 8,500 wounded men, many in constant, almost unendurable agony as they jolted over the rough and rutted roads.”  Although beaten, the Lee’s army “retained confidence in itself and its commander”  and they retreated in good order.
Across the carnage strewn battlefield on Cemetery Ridge George Meade took inventory and “unsure about the nature and extent of Lee’s movements from information he had already received, he realized he had a busy day ahead.”  The army, tired from three weeks of hard marching and three days of brutal combat was exhausted; Meade’s was down to about “51,000 men armed and equipped for duty.” About 15,000 were loose from the ranks, and though they would return “for the moment they were lost.”  The at times torrential rain “was a damper on enthusiasms,” and the Federal burial parties, exhausted from the battle and engaged in somber work, “dug long trenches and, after separating Rebel from Yankee, without ceremony piled the bodies several layers deep and threw dirt over them.” 
Meade ordered his trains to bring the supplies from Westminster Maryland on the morning of the 4th as Federal patrols pushed into the town to see what Lee’s army was doing, but apart from isolated skirmishing and sniper actions the day was quite. During the afternoon, “David Birney summoned the band of the 114th Pennsylvania “to play in honor of the National Anniversary” and up on the “line of battle.” They played the usual “national airs, finishing with the Star Spangled Banner.”  As they did a Confederate artillery shell passed over them, and with that last shot the battle of Gettysburg was over. Meade, signaling the beginning of an overly cautious pursuit, wired Halleck: “I shall require some time to get up supplies, ammunition, etc. [and to] rest the army, worn out by hard marches and three days hard fighting.” 
Surgeons and their assistants manned open air hospitals while parties of stretcher bearers evacuated wounded men for treatment and other soldiers began to identify and bury the dead. A Confederate soldier described the scene west of the town on July 4th:
“The sights and smells that assailed us were simply indescribable-corpses swollen to twice their size, asunder with the pressure of gases and vapors…The odors were nauseating, and so deadly that in a short time we all sickened and were lying with our mouths close to the ground, most of us vomiting profusely.” 
Halfway across the continent Confederate Lieutenant General John C. Pemberton surrendered his emaciated forces at Vicksburg to Major General Ulysses S Grant which cut the Confederacy in half. It was a fitting day of remembrance as it was the 87th anniversary of the signing of the Declaration of Independence, and the significance was not lost on any of the commanders. Grant, the victor of Vicksburg had eliminated a Confederate army of over 43,000 troops, and William Tecumseh Sherman wired his friend a most appropriate message: “This is a day of jubilee, a day of rejoicing for the faithful.” 
Lieutenant Elisha Hunt Rhodes of the 2nd Rhode Island wrote:
“Was ever the Nation’s Birthday celebrated in such a way before. This morning the 2nd R.I. was sent out to the front and found that during the night General Lee and his Rebel Army had fallen back. It was impossible to march across the field without stepping upon dead or wounded men, while horses and broken artillery lay on every side.” 
As Lee withdrew Meade slowly pursued and lost his chance of trapping the Confederate Army before it could escape across the rain swollen Potomac River. Lee completed his withdraw under pressure on the 14th and his rear-guard under the command of Major General Harry Heth fought an action against Union forces at the in which the accomplished academic and author Brigadier General James Pettigrew was mortally wounded.
Meade’s lackluster pursuit was criticized by many including President Lincoln who believed that had Meade been more aggressive that the war could have ended there. Had Lee’s army been destroyed in little over a week after the surrender of Vicksburg it could have well brought about the downfall of the Confederacy in the summer of 1863. Even so the skill of Meade in defeating Lee at Gettysburg was one of the greatest achievements by a Union commander during the war in the East. In earlier times Lee had held sway over his Federal opponents. McClellan, Porter, Pope, Burnside and Hooker had all failed against Lee and his army.
Many of the dead at Gettysburg were the flower of the nation. Intelligent, thoughtful and passionate they were cut down in their prime. The human cost some of over 50,000 men killed or wounded is astonishing. In those three days more Americans were killed or wounded than in the entire Iraq campaign.
The war would go on for almost two more years adding many thousands more dead and wounded. However the Union victory at Gettysburg was decisive. Never again did Lee go on the offensive and when Grant came east at the end of 1863 to command Union armies in the East against Lee the Federal armies fought with renewed ferocity and once engaged Grant never let Lee’s forces out of their grip.
 Corbin, Elbert. Union soldier in Pettit’s Battery account of caring for wounded at the Battle of Gettysburg retrieved from https://www.gilderlehrman.org/sites/default/files/inline-pdfs/t-03685.pdf 18 July 2014
 Primono, John W. The Appomattox Generals: The Parallel Lives of Joshua L Chamberlain, USA, and John B. Gordon, CSA, Commanders at the Surrender Ceremony of April 12th 1865 McFarland and Company Publishers, Jefferson NC 2013 p.187
 Catton, Bruce The Army of the Potomac: Glory Road Doubleday and Company, Garden City New York, 1952 p.322
 Wert, Jeffry D. General James Longstreet The Confederacy’s Most Controversial Soldier, A Touchstone Book, Simon and Schuster, New York and London 1993 p.293
 Trudeau, Noah Andre. Gettysburg: A Testing of Courage, Harper Collins Publishers, New York 2002 p.530
 Freeman, Douglas Southall, Lee an abridgment by Richard Harwell, Touchstone Books, New York 1997 p.341
 Ibid. Freeman Lee p.341
 Foote, Shelby, The Civil War, A Narrative. Volume Two Fredericksburg to Meridian Random House, New York 1963 p. 581
 Sears, Stephen W. Gettysburg. Houghton Mifflin Co. Boston and New York 2003 p.470
 Ibid. Foote, The Civil War, A Narrative. Volume Two pp.579-580
 Dowdy, Clifford. Lee and His Men at Gettysburg: The Death of a Nation Skyhorse Publishing, New York 1986, originally published as Death of a Nation Knopf, New York 1958
 Ibid. Foote, The Civil War, A Narrative. Volume Two p.580
 McPherson, James. The Battle Cry of Freedom: The Civil War Era Oxford University Press, Oxford and New York 1988 p.663
 Ibid. McPherson The Battle Cry of Freedom p.663
 Ibid, Sears Gettysburg pp.471-472
 Coddington, Edwin B. The Gettysburg Campaign: A Study in Command, A Touchstone Book, Simon and Schuster New York, 1968 p.536
 Ibid. Coddington, The Gettysburg Campaign p.535
 Ibid. Catton The Army of the Potomac: Glory Road p.323
 Ibid, Sears Gettysburg p.474
 Guelzo, Allen C. Gettysburg: The Last Invasion Vintage Books a Division of Random House, New York 2013 pp.433-434
 Schultz, Duane The Most Glorious Fourth: Vicksburg and Gettysburg July 4th 1863. W.W. Norton and Company New York and London, 2002 pp.355-356
 _________ What Happened to Gettysburg’s Confederate Dead? The Blog of Gettysburg National Military Park, retrieved from http://npsgnmp.wordpress.com/2012/07/26/what-happened-to-gettysburgs-confederate-dead/ 18 July 2014
 Ibid. Schultz, Duane The Most Glorious Fourth p.364
 Rhodes, Robert Hunt ed. All for the Union: The Civil War Diaries and Letters of Elisha Hunt Rhodes, Vintage Civil War Library, Vintage Books a Division of Random House, New York 1985 p.109