Yes it did. After three days of fighting (1-2-3 July 1863), Lee's Confederate Army of Northern Virginia was decisively defeated and forced to retreat.
George Pickett
Company C of the 18th Virginia, at the Battle of Gettysburg
Meade commanded the army of the Potomac.
George Pickett
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The Battle of Friedland was a battle that took place in the year 1807. In the Battle of Friedland, a French army lead by Napoleon attempted to defeat a Russian army.
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After the Battle of Gettysburg, Lee retreated south towards the Potomac River. There floods forced his delay to move towards Virginia faster. Lee had to take care of his many hospital bed wagons. Union forces under Meade were not able to pursue Lee's army due to bad weather and the efforts of Lee's rear guard. This ended Lee's attempts to lead his army to the North again. Lee offered his resignation to Jefferson Davis after this defeat, however, it was declined.
George Pickett affected the Civil War by leading attacks. He was a General who lead the futile assault at the Battle of Gettysburg.
Pickett's ill fated charges against well positioned Union troops helped lead to the defeat of Confederate forces at the Battle of Gettysburg. Many historians point to the loss by the Army of Northern Virginia led by Robert E. Lee as a major turning point in the US Civil War. This battle caused heavy losses on both sides.
During the American Civil War, the Battle of Gettysburg took place on July 1st through the 3rd in 1863. Commander of the victorious Union army in that battle was Major General George Gordon Meade (1815-1872), who continued to lead Union forces through the remaining years of the war.
It was his most dazzling victory. But it did not lead to anything much. His close colleague Stonewall Jackson was killed in this battle, and the Army of Northern Viirginia was never the same again. And his next big battle was Gettysburg - a humiliating defeat, some say the fatal turning-point of the war.