General J.E.B. Stuart clashed with General Judson Kilpatrick troopers at the Battle of Hanover on June 30, 1861. Although there was no clear victor the battle did force Stuart to retire to the north after the battle. This northward detour delayed Stuarts cavalry from rejoining General Lee. How much this delay impacted the Battle of Gettysburg is unknown. One can speculate how the Battle of Gettysburg would have changed if Lee had Stuart sooner.