The Siege of Petersburg lasted nine and a half months. Between the summer of 1864 and the spring of 1865, the Army of the Potomac and the Army of Northern Virginia faced each other across roughly 30 miles of trenches south of Richmond. The men in those lines did not fight a battle so much as endure a slow strangulation.
Petersburg was not a siege in the classical sense. There was no castle and no dramatic final surrender on the ramparts. Grant methodically cut Lee’s supply lines one railroad at a time while Lee’s army was fixed in place. For a general whose genius had always been movement, being trapped in the ground was a professional death that preceded his actual death by nearly a year.
By the spring of 1864, Ulysses Grant had command of all Union armies. He attached himself directly to the Army of the Potomac and followed it into the field. His strategy was simple and savage. He would hit Lee continuously)Skip on the flanking marches and rapid concentrations that had saved the Confederacy before. He forced Lee to spend men and supplies reacting to Union moves.
In late August of 1864, Union forces under Gouverneur Warren seized a stretch of track south of Petersburg and held it against furious counterattacks at Globe Tavern. Lee threw three divisions at the position and could not dislodge the Union troops. The Confederates still used the railroad but had to offload supplies further south and haul them by wagon. Every extra mile compounded their shortages.
The morning of July 30th, 1864, produced something unprecedented in American military history. A regiment of Pennsylvania coal miners from the 48th Pennsylvania Infantry had been sitting near a Confederate fort called Elliott’s Salient. Their former mine supervisor, Lieutenant Colonel Henry Pleasants, proposed digging a tunnel underneath the Confederate position and blowing it up.
Army engineering staff dismissed the plan as impossible. Pleasants did it anyway. Without proper surveying equipment or official support, his men dug a shaft approximately 510 feet from the Union lines to a point directly beneath the fort. They improvised ventilation systems from barrels and sheet metal and hauled dirt out in cracker boxes. It took a month.
When they finished, they packed the chamber with approximately 8,000 pounds of black powder. At 4:44 on the morning of July 30th, the fuse was lit. Nothing happened. Two men, Sergeant Harry Reese and Lieutenant Jacob Doughty, went into the tunnel to find the problem. They found the fuse had gone out at a splice, relit it, and ran.
The ground beneath Elliott’s Salient erupted. Men half a mile away described the earth rising in a slow column before separating and falling. The explosion killed or buried roughly 300 Confederate soldiers instantly. It left a crater 170 feet long, 60 feet wide, and 30 feet deep. For a few minutes, there was nothing in front of the Union lines except stunned silence and a hole in the ground.
Then everything went wrong.
The division of black troops trained for the assault was pulled from the lead at the last minute. General Meade worried that sending black soldiers into a dangerous assault would look like the Union was using them as cannon fodder. The replacement division was untrained for the specific demands of the assault and led by General James Ledlie, who spent the battle in a bomb-proof shelter drinking rum.
Union soldiers poured into the crater rather than around it. They milled around in the hole while Confederate soldiers recovered from their shock and began shooting down into the depression from the rim. When the black division finally went in, they went in late into a collapsed tactical situation. Several of the black soldiers who surrendered were shot on the spot.
The Battle of the Crater killed, wounded, or captured nearly 4,000 Union soldiers. It accomplished nothing except to deepen the certainty that the siege was going to last.
By autumn, the rhythms of life in the trenches had calcified. Men on both sides developed an unofficial code of conduct for the intervals between fighting. When officers were not watching, opposing pickets traded tobacco for coffee. Newspapers changed hands. In documented instances, men on opposing sides played cards together in the space between the lines.
But the humanity lived alongside something darker. The same men who traded tobacco in the afternoon were sometimes ordered to raid each other’s lines at night. These raids were conducted with bayonets and knives because a rifle shot would alert the whole trench. Men who had never considered themselves capable of killing in silence found out they were wrong.
The psychological damage was severe. Letters home, diaries, and pension records filed decades later describe nightmares and unexplained shaking. The word shell shock would not be coined for another 50 years, but the condition was present in the Petersburg trenches in abundance.
The Confederate situation deteriorated beyond morale. By the fall of 1864, Lee’s army was running short of nearly everything. In late 1864, a soldier’s daily ration in the trenches was approximately a quarter pound of meat, often rancid, and a small amount of cornmeal. On some days nothing was issued at all. Men ate rats. When an artillery horse died, men quarreled over the carcass.
Surgeons wrote dispatches to Richmond describing men too weak to stand watch for more than an hour. Desertion accelerated. Confederate soldiers walked into Union lines in groups of ten or twenty, making no effort at concealment. Many had been fighting for three years, at Chancellorsville, Gettysburg, and the Wilderness. What had broken was not their nerve but their belief that any of it still meant anything.
Lincoln’s re-election in November of 1864 mattered enormously. His opponent, McClellan, had run on a platform that included the possibility of a negotiated peace. Lincoln’s victory removed that possibility. The soldier vote carried Lincoln by enormous margins. The man in the trenches had voted to keep fighting.
The winter at Petersburg was static misery. The fighting did not stop entirely. There were raids, mortar duels, and constant sniper fire. A Union soldier from Maine wrote that he had slept wearing his full kit, including his cartridge box, for 19 consecutive nights. A Confederate soldier from Georgia wrote that he had not changed his socks in six weeks because he did not own another pair.
Lee made one major offensive attempt in the final weeks. On March 25th, 1865, Confederate forces under John B. Gordon attacked Fort Stedman on the eastern end of the line. Gordon’s men seized the fort and held a section of the Union line brieflyainer. They could not hold it. By the time the firing stopped, the Confederacy had lost approximately 5,000 men it could not afford.
The final blow came in the southwest. Grant sent Phil Sheridan with a strong cavalry force and infantry toward a crossroads called Five Forks, where the Southside Railroad was within reach. If the Southside Railroad fell, Petersburg fell. Lee sent George Pickett with approximately 19,000 men to hold Five Forks at all costs.
On April 1st, 1865, Sheridan’s infantry hit Pickett’s position late in the afternoon. Pickett was two miles from the battle at a shad bake. The acoustics of the terrain masked the sound of the engagement. He did not know his men were being overrun until it was too late.
The Southside Railroad was cut. The western end of the Confederate line was open. Grant ordered a general assault for the following morning, April 2nd. The attack broke through almost immediately at multiple points.
During the defense, A.P. Hill, one of Lee’s most reliable corps commanders, rode toward the breakthrough. He was shot from his horse by two Union soldiers he encountered in the woods. He died almost instantly. Receiving the news, Lee reportedly said: “He is at rest now and we who are left are the ones to suffer.”
Jefferson Davis was in church in Richmond when a courier arrived with Lee’s dispatch. The line had broken. Petersburg could not be held. Richmond had to be evacuated. Davis left the service without finishing the hymn.
That night, Confederate officials destroyed what they could. The fires spread beyond what anyone intended. When Union troops entered Richmond on the morning of April 3rd, they found significant portions of the Confederate capital burning. Black residents of the city were in the streets cheering their arrival.
Lee moved west with what remained of his army, perhaps 35,000 men, exhausted and hungry. Grant moved in parallel, faster, cutting off the roads ahead. The campaign that ended at Appomattox Courthouse on April 9th was a continuation of Petersburg’s logic. Lee could not get away because his men were too worn down to march fast enough.
The numbers from Petersburg resist easy absorption. The Union Army sustained approximately 42,000 casualties during the siege. Confederate casualties are harder to verify, but estimates run between 28,000 and 35,000. Those numbers do not include the men who survived but were permanently disabled.
The Siege of Petersburg did not fit the popular memory of the Civil War. There were commercial and psychological incentives to remember the war in terms of gallantry and decisive moments. Gettysburg served that need. Petersburg did not. Its defining quality was duration, monotony, and accumulation.
Veterans of Petersburg consistently described their service as something that separated them from civilians in ways they could not bridge. How do you explain what it feels like to exist for weeks in a space where you cannot stand upright, where the man to your left is shot while pulling on a boot, and you keep moving because stopping is not an option?
The Siege of Petersburg was the first industrialized trench war in American history. The tactical problems it created had no satisfying answers in doctrine oriented around maneuver and open field engagement. The Union solved the problem by cutting supply lines and grinding the defenders down. It was a logistical solution that required time measured in seasons.
What the war’s popular memory chose to celebrate—gallantry and decisive moments—avoided the more uncomfortable implications of what happened in the ground south of Richmond. Black soldiers who fought at Petersburg in substantial numbers were largely erased from postwar commemorative versions of the siege. They served at the Crater, at the Appomattox River crossings, and in the final assault of April 2nd. They died at Petersburg. Some were shot after surrendering.
Today, Petersburg National Battlefield preserves portions of the original trench lines. Visitors can walk sections of the earthworks and get some approximation of what it felt like to be contained in that space. What you cannot get is the experience of being there for 300 days, knowing that today is the same as yesterday, and tomorrow will be the same as today, except that at some point a bullet or shell fragment is going to decide something about your life that you have no vote on.
The men in those trenches were not abstractions. They were farmers from Ohio, factory workers from Massachusetts, immigrants from Germany and Ireland. They were Virginia boys and Georgia boys. They were 20 years old, most of them. Some were 15. On both sides, they were hungry and frightened and exhausted. They stayed because leaving felt like something a different kind of person did.
That stubbornness, held simultaneously by men trying to kill each other, is what makes the siege so hard to look at directly. It does not yield a clean moral. It does not resolve into a story where courage is rewarded and the better cause wins on the day it deserves to win. What it yields is the fact of what men will endure when they are put into a situation with no dignified exit and told to remain.
They remained. They remained for nine and a half months. Then the line broke all at once in a single morning, and the war that had been ending since Gettysburg finally, definitively ended.