The Battle of Gettysburg lasted three days from July 1st to July 3rd. The 1st day of Battle, armies meet in Gettysburg by chance, converging on the small farm town in PA. The Union was already set up from the previous day. John Buford ordered his men to take high ground. The shooting attracted a lot of attention and reinforcements were requested by both sides. The North, with 90,000 men under Meade's command, secures Cemetery hill. The South, with 75,000 men under Lee's command secure the town.