The Second Battle of Bull Run (Manassas) proved to be the deciding battle in the Civil War campaign waged between Union and Confederate armies in northern Virginia in 1862. As a large Union force commanded by John Pope waited for George McClellan’s Army of the Potomac in anticipation of a combined offensive, Confederate General Robert E. Lee decided to strike first. Lee sent half of his Army of Northern Virginia to hit the Federal supply base at Manassas. Led by Stonewall Jackson, hero of the First Battle of Bull Run (Manassas) 13 months earlier, the rebels seized supplies and burned the depot, then established hidden positions in the woods. On August 29, Pope’s Federals clashed with Jackson’s men, who held their ground with heavy losses on both sides. The following day, after the rest of Lee’s army arrived, 28,000 rebels led by James Longstreet launched a counterattack, forcing Pope to withdraw his battered army toward Washington that night.