The Battle of Guard Hill, Battle of Crooked Run, or the Battle of Front Royal took place on August 16, 1864, in Warren County, Virginia as part of Philip H. Sheridan's Shenandoah Valley Campaign of the American Civil War. According to Pachan, the Union's superior numbers and quality leadership routed the Confederate infantry, and the battle proved a watershed event in the Shenandoah Valley campaign.[1][2]