Union Holds Little Round Top at Gettysburg

Context

By the summer of 1863, Confederate General Robert E. Lee had launched his second invasion of Northern territory, seeking to relieve pressure on Virginia and perhaps force a negotiated peace. After a decisive victory at Chancellorsville in May, Lee moved his Army of Northern Virginia northward through the Shenandoah Valley and into Pennsylvania. Union General Joseph Hooker, who had been outmaneuvered at Chancellorsville, was replaced by George G. Meade just days before the armies collided.

The two forces met near the small town of Gettysburg on July 1, where initial clashes on the western and northern approaches gave way to a sprawling contest for control of key terrain. By the end of the first day, Union forces had fallen back to a strong defensive line anchored on Cemetery Hill and extending southward along Cemetery Ridge toward two prominent hills known as the Round Tops. Lee, determined to press his advantage, ordered attacks against both Union flanks on July 2, with Lieutenant General James Longstreet’s corps directed against the Federal left.

Little Round Top, the smaller and more northerly of the two hills, rose about 150 feet above the surrounding fields and offered a commanding view of the Union line. Its capture would have allowed Confederate artillery and infantry to enfilade Meade’s position and potentially roll up the entire defensive line from the south.

What Happened

Late on the afternoon of July 2, Confederate forces under Major General John Bell Hood advanced from Warfield Ridge toward the Union left. Hood’s division, including Brigadier General Evander Law’s brigade, encountered fierce resistance in the rocky terrain of Devil’s Den before pushing onward toward Little Round Top. The hill itself was only lightly defended at first by a Union signal station.

Brigadier General Gouverneur K. Warren, the Army of the Potomac’s chief engineer, recognized the hill’s critical importance and quickly directed reinforcements to the summit. Colonel Strong Vincent’s brigade from the Fifth Corps arrived just ahead of the Confederates and deployed along the southern and western slopes. The 20th Maine, commanded by Colonel Joshua Lawrence Chamberlain and positioned on the far left of Vincent’s line, faced the most direct threat as Alabama and Texas regiments from Law’s brigade climbed the boulder-strewn hillside.

Intense fighting lasted more than an hour as the 20th Maine and neighboring regiments repelled multiple waves of attackers. When ammunition ran low, Chamberlain ordered his men to fix bayonets and charge downhill, sweeping the Confederates back down the slope and capturing prisoners. Vincent’s brigade, supported by additional units that arrived during the fight, maintained control of the crest despite heavy losses, including Vincent himself.

Aftermath

The successful defense prevented Confederate forces from turning the Union left flank or placing artillery on the high ground overlooking Cemetery Ridge. Hood’s assault was ultimately checked, and Longstreet’s broader attack on the Union left failed to achieve its objectives. By nightfall on July 2, the Federal line remained intact, setting the stage for the climactic fighting on July 3.

Casualties on Little Round Top were severe on both sides, but the position remained in Union hands. The failure to seize the hill contributed to Lee’s decision to attempt a frontal assault the following day rather than renew flank attacks.

Legacy

The stand at Little Round Top became one of the most celebrated episodes of the Civil War, symbolizing the decisive role of terrain, timely reinforcement, and individual leadership in battle. Chamberlain’s bayonet charge, in particular, entered American historical memory through memoirs, novels, and later dramatizations, elevating the 20th Maine and its commander to iconic status.

The Union victory at Gettysburg as a whole ended Lee’s offensive capabilities in the North and marked a strategic turning point in the war. Little Round Top’s defense underscored the importance of rapid tactical decisions and helped cement Gettysburg’s place as a pivotal moment that preserved the Union and shifted momentum toward eventual Federal victory.