<human>:  How did the Battle of Gettysburg affect the outcome of the Civil War?
<bot>: The Battle of Gettysburg was a turning point in the Civil War and was seen as a Union victory, with the Confederate army being forced to retreat. This was seen as a sign of weakening for the Southern army and was a major factor in the outcome of the war, as it effectively ended the Confederate invasion of the North. In the end, the victory at Gettysburg helped the Union secure victory in the Civil War.