Siege and Breakthrough at Petersburg During the 292-day Richmond–Petersburg Campaign (
Siege of Petersburg) Union General-in-Chief Ulysses S. Grant had to conduct a campaign of
trench warfare and attrition in which the Union forces tried to wear down the less numerous Confederate Army of Northern Virginia, destroy or cut off sources of supply and supply lines to Petersburg and Richmond and extend the defensive lines which the outnumbered and declining Confederate force had to defend to the breaking point. After the
Battle of Hatcher's Run on February 5–7, 1865 extended the armies' lines another , Lee had few reserves after manning the lengthened Confederate defenses. Lee knew he must soon move part or all of his army from the Richmond and Petersburg lines, obtain food and supplies at
Danville, Virginia or possibly
Lynchburg, Virginia and join General
Joseph E. Johnston's force opposing Major General
William T. Sherman's army in North Carolina. Lee thought that if the Confederates could quickly defeat Sherman, they might turn back to oppose Grant before he could combine his forces with Sherman's. After an offensive begun on the night of March 28–March 29, 1865 that included the
Battle of Lewis's Farm,
Battle of White Oak Road and the
Battle of Dinwiddie Court House, Lieutenant General Ulysses S. Grant's Union Army (
Army of the Potomac,
Army of the James,
Army of the Shenandoah) broke the
Confederate States Army defenses of
Petersburg, Virginia at the
Battle of Five Forks on April 1 and the
Third Battle of Petersburg on April 2. A Union division under the command of
Brigadier General Nelson A. Miles also broke up the last defense of the
South Side Railroad on the afternoon of April 2, cutting off that railroad as a supply line or route of retreat for the Confederates. General Robert E. Lee's
Army of Northern Virginia evacuated
Petersburg, Virginia and the Confederate capital of
Richmond, Virginia on the night of April 2–3 and began a retreat in hopes of reaching
Danville, Virginia and then linking up with General
Joseph E. Johnston's army attempting to slow the advance the Union army group commanded by
Major General William T. Sherman in
North Carolina.
Confederate army flight Much of the Army of Northern Virginia as well as Confederate President Jefferson Davis and his cabinet, were able to escape from Petersburg and Richmond just in advance of the Union troops entering those cities on April 3 because Confederate rear guard forces, especially at
Forts Gregg and Whitworth,
Fort Mahone and
Sutherland's Station, fought desperate delaying actions on April 2 to give most of the Confederates a head start on Union Army pursuers. General Lee planned to reunite the four columns of his army that left Petersburg and Richmond and to resupply at
Amelia Court House, Virginia, southwest of Richmond. Lee's men left their positions in Petersburg and Richmond with only one day's rations. Lee expected to find a supply train of rations that he had ordered brought to Amelia Court House to meet the army at that location.
Pursuit and skirmishes While most of Lee's army had an effective one day head start on their flight, the advance cavalry and infantry corps of the Union Army under the command of Maj. Gen.
Philip Sheridan were able to keep Lee's forces to their north by pursuing Lee on a parallel course to their south. Union cavalry harassed and skirmished with Confederate units almost from the outset of Lee's army's march from Petersburg. On April 3, 1865, advance units of the Union cavalry fought with rear guard Confederate cavalry at the
Battle of Namozine Church. and at
Amelia Court House. Meanwhile, Sheridan's forces occupied Jetersville and Burkeville Junction. ==Battles of Amelia Springs==