The Battle of Gettysburg: Day Three

July 3, 1863 – General Robert E. Lee’s Confederate Army of Northern Virginia launched a massive, desperate charge to destroy the Federal Army of the Potomac once and for all.

The Confederates had bested the Federals in two days of fighting south of Gettysburg. However, the Federals had fallen back behind their defenses, and their lines remained intact. Major General George G. Meade, commanding the Federal army, strengthened his defenses even more in preparation for another Confederate attack expected on this day.

During the night, Major General Henry W. Slocum’s XII Corps returned to Culp’s Hill on the extreme Federal right after being transferred to support the left the previous day. The Confederates had blown a gap in the Federal line there which, if penetrated, could threaten the Federal lines of supply and possible retreat. Slocum directed his men to build defenses and plug the gap.

Confederate Lieut Gen Richard Ewell | Image Credit:

The third day of fighting began when Lieutenant General Richard Ewell’s Confederate Second Corps attacked Culp’s Hill at 4 a.m. Waves of Confederates surged against the Federals for over six hours before finally falling back, unable to break the strong Federal lines. The fighting ended around 10:30 a.m., and an eerie quiet fell upon the battlefield.

As Meade guessed, Lee planned to shift his focus to the center of the Federal line at Cemetery Ridge. Lieutenant General James Longstreet, commanding the Confederate First Corps, again urged Lee to move around Meade’s left flank and interpose himself between the Federals and Washington. Lee insisted that Federal morale was low, Confederate strength was at its peak, and one more assault would break the Federal army.

Under Lee’s plan, a heavy artillery bombardment would soften the Federal defenses. Then three divisions (consisting of 50 regiments in 11 brigades) totaling 15,000 men would march across the open ground from Seminary Ridge and attack. The divisions included those of:

  • Major General Isaac Trimble, replacing the mortally wounded Major General William D. Pender, of Lieutenant General A.P. Hill’s Third Corps
  • Brigadier General James J. Pettigrew, replacing the wounded Major General Henry Heth, of Hill’s corps
  • Major General George Pickett of Longstreet’s corps
Confederate Major General James Longstreet | Image Credit:

Longstreet would be the overall commander, even though only one of the divisions belonged to him. Two of the divisions would be led by men who had never held divisional commands before. One division, Pettigrew’s, had already been decimated in the first day of fighting.

Longstreet said, “General Lee, there never was a body of 15,000 men who could make that attack successfully.” But Lee would not relent. He had initially hoped that Longstreet’s attack would be coordinated with Ewell’s on Culp’s Hill, but Ewell had already been defeated. Now Lee hoped that Major General Jeb Stuart’s Confederate cavalry could attack the Federal rear to divert attention from Longstreet’s impending attack.

Meanwhile, Federals strengthened their defenses along Cemetery Ridge, sensing that Lee would attack that sector of the line after attacking both flanks. The defenders consisted mostly of Major General Winfield Scott Hancock’s II Corps, led by the divisions of Major Generals John Gibbon and Alexander Hays. They could see the Confederates unlimbering their cannon a mile west.

Longstreet worked with Colonel E. Porter Alexander, his chief artillerist, to ensure that the upcoming bombardment, according to Alexander, “was not meant simply to make a noise, but to try and cripple him–to tear him limbless, as it were, if possible.” Longstreet then rode off to assemble the infantry.

Alexander received a message from Longstreet around 11 a.m.: “If the artillery fire does not have the effect to drive off the enemy, or greatly demoralize him, so as to make our efforts pretty certain, I would prefer that you should not advise Gen. Pickett to make the charge.” Alexander, knowing he could not accurately determine what effect his cannon would have on hidden troops, replied, “If there is any alternative to this attack it should be carefully considered before opening our fire.”

Around noon, Stuart’s cavalry set out to attack the Federal rear and divert attention from Cemetery Ridge, when about 4,500 Federal horsemen under Brigadier General David Gregg rode up to oppose them. A vicious fight ensued, featuring charges and countercharges with rifles and sabers among mounted and dismounted troopers.

Federals guns came up in support, and the Confederates were driven off. They lost 181 men, while the Federals lost 254. Stuart’s planned assault on the Federal rear was aborted, making this a Federal victory. A Federal brigade under Brigadier General George A. Custer particularly distinguished itself.

At 1:07 p.m., Confederates opened 140 guns on Cemetery Ridge. This was intended to weaken the defenses before the infantry assault. However, most of the guns were aimed too high, so the shells screamed past the Federals and crashed harmlessly beyond the ridge. The Federals slowly responded with 100 guns of their own, and this soon became the largest artillery duel of the war. The booming could be heard all the way to Pittsburgh, nearly 200 miles west.

The Federal guns eventually stopped firing, leading the Confederates to believe they had run out of ammunition. But the Federals were simply trying to lure the Confederates into the open. Alexander sent a message to Pickett: “For God’s sake come quick… or I can’t support you.” Pickett rode to Longstreet and asked, “General, shall I advance?” Longstreet, sensing the futility of this attack, turned away. Pickett said, “I am going to move forward, sir.”

Longstreet met with Alexander, who explained that he could not support the infantry because his ammunition train was too far in the rear. Longstreet said, “Go and halt Pickett right where he is and replenish your ammunition.” But Alexander said that by the time it was replenished, the Federal lines would be strengthened to the point that neither artillery nor infantry could break them. Longstreet said, “I don’t want to make this attack. I believe it will fail. I would not make it even now, but that General Lee has ordered it and expects it.” Alexander said nothing.

The Confederate infantry advance began at 3 p.m. The men marched with parade ground precision as their flags waved in the breeze. General Frank Haskell of the Federal II Corps recalled:

“More than half a mile their front extends; more than a thousand yards the dull gray masses deploy, man touching man, rank pressing rank, and line supporting line. The red flags wave, their horsemen gallop up and down; the army of 18,000 men, barrel and bayonet, gleam in the sun, a sloping forest of flashing steel. Right on the move, as with one soul, in perfect order, without impediment of ditch, or wall or stream, over ridge and slope, through orchard and meadow, and cornfield, magnificent, grim, irresistible.”

Federal artillerists waited until the troops came within range and then opened fire with deadly accuracy. As men fell, the others closed ranks and continued forward. They moved into the open ground, with Pickett’s Virginians leading, toward a copse of trees in the middle of the Federal line. The troops stopped at the Emmitsburg road to dress their line, having already sustained heavy losses.

Confederates charge Cemetery Ridge | Image Credit:

As the Confederates entered rifle range, Federal infantry along Cemetery Ridge began pouring their fire into them. Men fell in heaps, but the Confederates still pushed forward. Just a small fraction of the attacking force reached the ridge. A soldier recalled:

“Men fire into each other’s faces, not five feet apart. There are bayonet-thrusts, sabre-strokes, pistol-shots;… men going down on their hands and knees, spinning round like tops, throwing out their arms, gulping up blood, falling; legless, armless, headless. There are ghastly heaps of dead men…”

Those Confederates who reached the ridge were enfiladed on both sides by overwhelming Federal numbers. Nevertheless, a group of 150 men led by Brigadier General Lewis Armistead of Pickett’s division penetrated the Federal line at what became known as the Angle. This was the closest the Confederate army ever came to military victory on northern soil.

Armistead’s men were met by a Pennsylvania brigade of II Corps led by Brigadier General Alexander S. Webb, who surged forward to seal the gap and force the surviving Confederates to either surrender or retreat. Armistead was killed, and Webb was also wounded; he later earned the Medal of Honor for his action.

The Federals ultimately held firm, as artillery and reinforcements massed to repel the Confederate attackers. Federal troops who remembered their horrible defeat at Fredericksburg in December shouted, “Fredericksburg! Fredericksburg!” to the withdrawing Confederates. The climactic battle of the Eastern Theater ended in Confederate defeat.

Only about half the Confederate attackers returned to their lines on Seminary Ridge. As they came, Lee rode among them saying, “It’s all my fault. It is I who have lost this fight, and you must help me out of it the best way you can. All good men must rally.” The troops implored Lee to give them another chance, but Lee would not. He issued orders to prepare defenses against a potential Federal counterattack.

Ewell’s corps was pulled out of Gettysburg. By day’s end, Lee told a subordinate, “We must now return to Virginia.” He planned to retreat as soon as the wagon trains and ambulances filled with the wounded could be put in motion.

In the horrific three-day struggle, the Federals sustained 23,049 casualties (3,155 killed, 14,529 wounded, and 5,365 missing). The Confederates lost 20,451 (2,592 killed, 12,709 wounded, and 5,150 missing). The Confederate losses were especially crippling because the South lacked the manpower to replace them. Pickett’s division alone lost more than half its men, including every regimental commander, two brigadier generals, and six colonels. The 43,500 total casualties made this the costliest battle ever fought in American history.

The performance of Lee’s commanders contributed to the defeat. Ewell had been reluctant to attack, Longstreet disagreed with Lee’s strategy, Hill was sick and thus not fully involved, and Stuart had deprived Lee of vital intelligence before the battle. Lee himself bore some responsibility for not properly coordinating his attacks, for issuing vague orders, and for rejecting Longstreet’s advice to move around the Federal left.

Some commanders urged Meade to use his 20,000 reserves to counterattack and finish Lee off. But Meade, having been army commander for just six days, three of which were spent fighting the largest battle of the war, was satisfied to have repelled Lee’s attacks for now. Unaware that his men had just destroyed about a third of Lee’s army, leaving him crippled in enemy territory, Meade said, “We have done well enough.”



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