The Battle of Gettysburg: A Turning Point in the Civil War

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7/1/2026 · 👁 3 · battle-of-gettysburggettysburgamerican-civil-warcivil-war-battleunion-armyconfederate-armyabraham-lincolngettysburg-address
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What was the Battle of Gettysburg?
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The Battle of Gettysburg, fought from July 1 to July 3, 1863, was a pivotal engagement in the American Civil War. It took place near the town of Gettysburg, Pennsylvania, and involved the Union Army of the Potomac, commanded by Major General George G. Meade, and the Confederate Army of Northern Virginia, led by General Robert E. Lee. Often cited as the turning point of the war, Gettysburg resulted in the largest number of casualties of the entire conflict and marked the furthest north a major Confederate invasion reached.

Background to the Battle

By the summer of 1863, General Robert E. Lee's Confederate forces were at the peak of their strength and morale, fresh off a decisive victory at Chancellorsville in May. Lee believed that a successful invasion of the North could achieve several strategic objectives:

  • Relieve pressure on Virginia: Divert Union forces from the besieged city of Vicksburg, Mississippi, and other Southern fronts.
  • Gain foreign recognition: A major victory on Union soil might encourage Great Britain and France to officially recognize the Confederacy.
  • Influence Northern politics: Undermine Northern morale and potentially strengthen the "Peace Democrats" who advocated for an end to the war.
  • Forage for supplies: Pennsylvania was a rich agricultural area, offering much-needed food, horses, and other resources for the Confederate army.

Lee's Army of Northern Virginia, numbering around 75,000 men, began its march northward in early June 1863. The Union Army of the Potomac, initially under Major General Joseph Hooker, pursued them. However, just days before the battle, Hooker was relieved of command and replaced by Major General George G. Meade, a native Pennsylvanian. Meade quickly moved his army, approximately 95,000 strong, to intercept Lee.

The Three Days of Battle

The Battle of Gettysburg unfolded over three intense days, each with distinct characteristics and critical moments.

Day 1: July 1, 1863 – The Initial Clashes

The battle began almost by accident. Confederate forces, primarily elements of A.P. Hill's corps, marched towards Gettysburg in search of supplies, particularly shoes rumored to be in the town. They unexpectedly encountered Union cavalry under Brigadier General John Buford west of the town. Buford's dismounted cavalry skillfully held off the advancing Confederates, buying crucial time for Union infantry, led by Major General John Reynolds's I Corps, to arrive and establish defensive positions.

  • Morning: Buford's cavalry fights a delaying action on McPherson's Ridge and Seminary Ridge.
  • Afternoon: Union I Corps arrives, but General Reynolds is killed early in the fighting. XI Corps arrives from the south, but both Union corps are eventually overwhelmed by superior Confederate numbers from Hill's and Ewell's corps.
  • Evening: Union forces are pushed back through Gettysburg, suffering heavy casualties and disorganization. They rally on high ground south of the town, particularly on Cemetery Hill and Culp's Hill, which would prove to be critical defensive positions. This high ground was secured by the timely arrival of Major General Winfield Scott Hancock, sent by Meade to assess the situation and take command.

Day 2: July 2, 1863 – The Fierce Attacks on the Flanks

On the second day, Lee ordered a series of aggressive assaults against the Union flanks, aiming to dislodge them from their strong defensive positions.

  • Union Defensive Line: The Union line formed a "fishhook" shape, with Culp's Hill and Cemetery Hill at the barb, Cemetery Ridge forming the shank, and Little Round Top anchoring the hook's eye at the southern end.
  • Confederate Attacks (Afternoon):
  • Longstreet's Assault: Lieutenant General James Longstreet's corps launched massive attacks against the Union left flank. This led to some of the most famous and brutal fighting of the war in areas like the Peach Orchard, the Wheatfield, Devil's Den, and Little Round Top.
  • Little Round Top: Colonel Joshua Lawrence Chamberlain's 20th Maine Regiment famously defended Little Round Top against repeated Confederate charges, culminating in a desperate bayonet charge that secured the hill for the Union. This action prevented the Confederates from outflanking the entire Union line.
  • Cemetery Ridge: Other Confederate attacks pushed towards Cemetery Ridge, but Union reinforcements managed to hold the line.
  • Culp's Hill and East Cemetery Hill: Late in the day, Confederate forces from Ewell's corps attacked Culp's Hill and East Cemetery Hill. While they gained a foothold on Culp's Hill, they were unable to dislodge the main Union defenses.

Despite heavy fighting and significant casualties on both sides, the Union line held firm.

Day 3: July 3, 1863 – Pickett's Charge

Lee remained convinced that a decisive victory was still possible. He decided on a direct frontal assault against the center of the Union line on Cemetery Ridge, believing that the previous day's attacks had weakened it.

  • Morning: Fighting resumed on Culp's Hill, where Union forces successfully dislodged the Confederates who had gained a foothold the previous evening.
  • Artillery Barrage: Around 1:00 PM, Confederate artillery launched a massive, two-hour bombardment of the Union center, intended to soften the defenses. However, much of the fire was inaccurate, overshooting the Union lines.
  • Pickett's Charge: Following the barrage, around 12,500 Confederate infantrymen, led by Major General George Pickett, Brigadier General J. Johnston Pettigrew, and Major General Isaac R. Trimble, began their advance across open fields towards Cemetery Ridge. This became known as "Pickett's Charge."
  • The Confederates faced devastating artillery and musketry fire as they marched.
  • A small number of Confederates managed to breach the Union line at a point known as "The Angle," but they were quickly overwhelmed and repulsed by fierce Union counterattacks.
  • The charge was a catastrophic failure, resulting in over 50% casualties for the attacking force.

The failure of Pickett's Charge marked the end of the battle. Lee's army was severely weakened and began its retreat back to Virginia on July 4, under heavy rain.

Aftermath and Significance

The Battle of Gettysburg was the bloodiest battle of the American Civil War.

  • Casualties:
  • Union: Approximately 23,000 (3,155 killed, 14,531 wounded, 5,365 captured/missing)
  • Confederate: Approximately 28,000 (4,708 killed, 12,693 wounded, 5,830 captured/missing)
  • Turning Point: Gettysburg, coupled with the Union victory at Vicksburg on July 4, 1863, is widely considered the turning point of the Civil War. Lee's strategic offensive into the North was decisively defeated, and the Confederacy would never again launch a major invasion of Union territory. From this point forward, the Confederacy was largely on the defensive.
  • Lincoln's Gettysburg Address: Four months after the battle, on November 19, 1863, President Abraham Lincoln delivered his famous Gettysburg Address at the dedication of the Soldiers' National Cemetery. In this brief but powerful speech, Lincoln redefined the purpose of the war, emphasizing human equality and the preservation of democratic government.

The Battle of Gettysburg remains one of the most studied and iconic battles in military history, a testament to the immense human cost and strategic importance of the American Civil War.

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