In July 1779, Washington named Wayne to command the Corps of Light Infantry, a temporary unit of four regiments of light infantry companies drawn from all the regiments in the Main Army. His successful attack on British positions in the Battle of Stony Point was the highlight of his Revolutionary War service. On July 16, 1779, he replicated the bold attack used against him at Paoli and personally led a nighttime bayonet attack lasting 30 minutes. His three columns of about 1,500 light infantry stormed and captured British fortifications at Stony Point, a cliff-side redoubt commanding the southern Hudson River. The battle ended with around 550 prisoners taken, with fewer than 100 casualties for Wayne's forces. The success of this operation provided a boost to the morale of the army, which had suffered a series of military defeats, and the Continental Congress awarded him a medal for the victory. It was after this battle that he earned the name Mad Anthony for what his fellow soldiers saw as tactical bravery and courage.