During the Siege of Vicksburg in the west, another turning point came in the east. After winning some battles, Lee decided to invade the North again. Lee and his Army of Northern Virginia went into Pennsylvania. The Confederate Army met the Union Army near Gettysburg, Pennsylvania and fought the Battle of Gettysburg, which lasted from July 1 to 3, 1863. More soldiers died at Gettysburg than in any other Civil War battle, which the Union won. Lee and his troops were pushed back into the South and could no longer invade the North.