Key Facts
- Duration
- June 9, 1864 – March 25, 1865
- Trench line length
- Over 30 miles (48 km)
- Type of warfare
- Trench warfare
- Notable troop concentration
- Largest concentration of African-American troops in the war
Strategic Narrative Overview
Union forces launched initial assaults on Petersburg in June 1864 but failed to capture it outright. Grant then constructed an expanding network of trenches stretching over 30 miles from Richmond's eastern outskirts to Petersburg's southern perimeter. Nine months of attritional trench warfare followed, punctuated by battles including the Battle of the Crater and Chaffin's Farm, where African-American troops suffered heavy casualties, and numerous raids aimed at severing Confederate supply lines.
01 / The Origins
By mid-1864, Union General Ulysses S. Grant sought to cut off Confederate General Robert E. Lee's Army of Northern Virginia by targeting Petersburg, Virginia, the critical rail hub supplying both Lee's forces and the Confederate capital of Richmond. Controlling Petersburg meant controlling the Richmond and Petersburg Railroad, making the city a strategic chokepoint whose loss would compel the Confederacy to abandon its capital.
03 / The Outcome
Sustained pressure on Confederate lines forced Lee to abandon both Petersburg and Richmond in April 1865. His army retreated westward but was cut off and cornered, leading to his surrender at Appomattox Court House on April 9, 1865. The fall of the Confederate capital and Lee's capitulation effectively ended the Civil War, and the campaign's trench warfare foreshadowed the industrialized siege methods of World War I.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Ulysses S. Grant.
Side B
1 belligerent
Robert E. Lee.
Kinetic Engagement Axis
Scroll horizontally to view full axis. Events plotted relatively.