Three Battles of the Shenandoah Valley Campaign of 1862. In a campaign still studied in military academies, Confederate General Thomas J. (Stonewall) Jackson engaged and defeated the Union forces pursuing him. Greatly outnumbered and at times facing three Union armies, Jackson defeated them all within ten weeks, at one point completely freeing the Shenandoah Valley of Union forces. Three battles from Jackson’s 1862 Valley Campaign are featured.