Third Corps, Army of Northern Virginia Third Corps, Army of Northern Virginia The Third Corps, Army of Northern Virginia was a unit of the Provisional Army of the Confederate States. After the death of Lt. General Thomas J. Jackson at the Battle of Chancellorsville, Robert E. Lee reorganized his army from two infantry corps into three corps, giving command of the new Third Corps to A. P. Hill. For Hill's new corps, Lee assigned Hill's old "Light Division", commanded by Major General William Dorsey Pender, from the Second Corps and Richard H. Anderson's division from James Longstreet's First Corps. For the Corps' third division, Lee created
Joseph E. Johnston Manassas. The winter of 1861–62 was relatively quiet for Johnston in his Centreville headquarters, concerned primarily with organization and equipment issues, as the principal Northern army, also named Army of the Potomac, was being organized by George B. McClellan. McClellan perceived Johnston's army as overwhelmingly strong in its fortifications, which prompted the Union general to plan an amphibious movement around Johnston's flank. In early March, learning of Union offensive preparations, Johnston withdrew his army to Culpeper Court House. This movement had repercussions on both sides. President Davis was surprised and disappointed by the unannounced move, which he considered a "precipitate