"By the summer of 1863, the Confederate Army, led by General Robert E. Lee, had achieved many victories, and was ready to invade the North,moving both armies from the war torn Northern Virgina. By invading the north, and by chance securing a victory, it could cause disenchanted northerners to pressure the Lincoln Administration to seek a settlement toward peace, thus ending the war. This decision would lead the two armies to the small, rural town of Gettysburg." GCVB.