a trench line four miles long, in and around Spotsylvania, about 10 miles southeast of the Wilderness battlefields. On the evening of May 7, Lee ordered Maj. Gen. Richard Anderson to move his corps to Spotsylvania Court House, believing that Grant was headed to the same place. He told Anderson to have his men on the move by three in the morning, but Anderson decided to move at ten that evening, a decision that would prove to help the Army of Northern Virginia considerably. At the same time Lee put Anderson in motion, Grant decided to move his army to the same location in hopes of drawing Lee out into the open and get between Lee and Richmond. The First Corps had just arrived to Block House Bridge when Anderson was informed that Maj. Gen. J.E.B. Stuart was holding off Grant's infantry (elements of Warren's V Corps) on Brock Road and needed reinforcements. He sent the brigades of Henegan and Humphreys to his aid, and upon their arrival, Stuart deployed them along the crest of Laurel Hill, where they successfully held off the Federal advance. No sooner had Anderson sent his first two brigades off when he was approached by a courier from Maj. Gen. Fitzhugh Lee, who was engaged with Federal cavalry units of Brig. Gen. James H. Wilson, who had just broken through to the Court House. Anderson immediately sent the brigades of Bryan and Wofford, who are able to help Lee fend off the cavalrymen. The First Corps would spend the majority of the battle defending against repeated assaults of Laurel Hill made by both V Corps infantry as well as units from Hancock's II Corps, and was not heavily involved in the fighting in and around the "Bloody Angle." Note: see Cold Harbor order of battle for the command structure of the Army of Northern Virginia at this time. Siege of Petersburg Civil War service, 1865 Siege continues Five Forks and Appomattox Following Lt. Gen. A.P. Hill's death at Petersburg, the remnants of the Third Corps were merged into the First Corps on April 2. Surrender and parole See also Second Corps, Army of Northern Virginia Third Corps, Army of Northern Virginia Fourth Corps, Army of Northern Virginia Cavalry Corps, Army of Northern Virginia Notes References Calkins, Chris M. The Appomattox Campaign: March 29 – April 9, 1865. Conshohocken, Pennsylvania: Combined Books, Inc., 1997. Eicher, John