Battle of Iuka

September 19, 1862

The Battle of Iuka was fought on September 19, 1862, between General William S. Rosecrans’ Union Army of the Mississippi and General Sterling Price’s Confederate Army of the West. Union forces regained Iuka, but poor coordination allowed Price’s army to escape and later unite with General Earl Van Dorn’s forces for an attack on Corinth.

Ulysses S. Grant, General, USA, Civil War, LOC

Some historians believe that the Battle of Iuka may have been the source of differences between Union generals Ulysses S. Grant (pictured here) and William S. Rosecrans that ultimately led to Grant relieving Rosecrans of his command at Chattanooga a little over one year later. Image Source: Library of Congress.

Overview

The Battle of Iuka was fought in Iuka, Mississippi, on September 19, 1862. After capturing the Union supply depot at Iuka, Confederate General Sterling Price waited for General Earl Van Dorn’s 7,000-man force. The two Confederate Commanders planned to combine their armies, attack Union supply and communication lines, and then join General Braxton Bragg’s Confederate Heartland Campaign.

General Ulysses S. Grant tried to prevent the Confederate armies from uniting. Following a plan proposed by General William S. Rosecrans, Grant sent General Edward Ord and 8,000 soldiers toward Iuka from the northwest. Rosecrans and 9,000 soldiers approached from the southwest. Ord reached the area first, but Rosecrans arrived later because his troops traveled farther over poor roads. Grant ordered Ord to attack after he heard Rosecrans’ troops fighting.

Rosecrans advanced to within two miles of Iuka on September 19. Price attacked first, and the battle lasted about three hours before darkness stopped the fighting. Ord’s soldiers never entered the battle. Price escaped overnight along a road that Rosecrans had not secured.

Union forces regained Iuka and claimed victory, but their commanders failed to trap Price. The Confederates suffered 1,516 casualties, while the Union suffered 790. Price later joined Van Dorn, and their combined army attacked Corinth, Mississippi, in October 1862.

Essential Facts

  • Date: September 19, 1862.
  • Location: Iuka, Mississippi.
  • Participants: The United States of America (USA) and the Confederate States of America (CSA).
  • USA Commanders: William S. Rosecrans.
  • CSA Commanders: Sterling Price.
  • Who Won: The United States won the Battle of Iuka.
  • Campaign: Iuka and Corinth Operations.
  • Era: Civil War, July–December, 1862.

Statistics

United States of America

  • Casualties: 790, including 144 killed, 598 wounded, and 40 captured or missing.
  • Forces Engaged: Army of the Mississippi.
  • Troop Strength: Roughly 4,500 soldiers.

Confederate States of America

  • Casualties: 1,516, including 263 killed, 692 wounded, and 561 captured or missing.
  • Forces Engaged: Army of the West.
  • Troop Strength: Roughly 3,000 soldiers.

Significance

The Battle of Iuka is important to American History because Union forces regained an important supply depot on the Memphis & Charleston Railroad but failed to destroy General Sterling Price’s army. General Ulysses S. Grant planned to trap Price by sending General Edward Ord and General William S. Rosecrans toward Iuka from different directions. Poor coordination kept Ord’s 8,000 soldiers out of the battle, while Rosecrans left an escape road unguarded. Price withdrew during the night and later joined General Earl Van Dorn. Their combined forces formed the Army of West Tennessee and attacked Corinth in October 1862. The battle also contributed to later disagreements between Grant and Rosecrans.

History

Bright Union Prospects

Union prospects were bright for a successful end of the American Civil War in the early part of 1862. In the East, Major General George McClellan’s Army of the Potomac (USA) had advanced up the Virginia Peninsula and was threatening the Confederate capital at Richmond by early June.

West of the Appalachians, Union victories at Middle Creek (January 10, 1862) and Mill Springs (January 19, 1862) forced Confederate forces out of eastern Kentucky and back south into Tennessee.

In the Mississippi Valley, the Union capture of Fort Donelson (February 11–16, 1862) and Fort Henry (February 6, 1862) opened the door for a federal invasion that culminated with a bloody victory at the Battle of Shiloh (April 6–7, 1862) and the capture of the vital railroad center at Corinth, Mississippi (May 30, 1862). One week later, Flag Officer David G. Farragut’s Union fleet captured the city of New Orleans.

Tides Reversed

By late summer, the tide had reversed. General Joseph Johnston, the Confederate commander of the Army of Northern Virginia (CSA), was wounded at the Battle of Seven Pines (May 31–June 1, 1862). Confederate President Jefferson Davis replaced Johnston with the more aggressive General Robert E. Lee. Lee immediately launched an offensive against McClellan that drove the Army of the Potomac off of the Virginia Peninsula by August. By September, Lee’s army was in Maryland, endangering the nation’s capital. In the near West, Confederate General Braxton Bragg threatened Union control of Kentucky by launching his Heartland Campaign in August. Only in the Mississippi Valley did Union prospects remain bright.

Union Command Shakeup in the West

Two months after the capture of Corinth, President Abraham Lincoln summoned Major General Henry Halleck to Washington to assume command of all federal armies. Lincoln hoped that Halleck could duplicate his successes in the West on a broader stage.

Before departing, Halleck dismantled the large army he had used to capture Corinth. Halleck dispatched Major General Don Carlos Buell’s Army of the Ohio (USA) to Nashville, Tennessee, where it operated as a separate command.

Halleck’s second-in-charge during the Corinth operations, Major General Ulysses S. Grant, resumed command of the Army of the Tennessee (USA). Grant also oversaw Major General William S. Rosecrans’ Army of the Mississippi (USA). Altogether, Grant commanded roughly 100,000 soldiers near Corinth. Federal officials instructed Grant to protect Union supply lines in western Tennessee and Mississippi and to focus on capturing the last Confederate stronghold on the Mississippi River at Vicksburg, Mississippi.

Bragg Replaces Beauregard

On the Confederate side, General P.G.T. Beauregard’s evacuation of Corinth without a fight incensed President Jefferson Davis. On June 17, he relieved Beauregard of his command, presumably because Beauregard went on sick leave without prior authorization from Davis. Davis replaced Beauregard with General Braxton Bragg.

Confederate Heartland Campaign

Hoping to draw Federal troops away from Vicksburg and restore Kentucky to the Confederacy, Bragg launched his Confederate Heartland Campaign in June. As Bragg moved north, he ordered Major General Sterling Price to leave Tupelo, Mississippi, and to bring his 3,000-man Army of the West (CSA) north to join him in Tennessee.

Federals Abandon Iuka

By September 13, 1862, Price had reached the town of Iuka, Mississippi, about 20 miles east of Corinth. Iuka was a small Union supply depot on the Memphis & Charleston Railroad. As Price’s army advanced on the Union garrison posted at Iuka, the federal commander, Colonel Robert C. Murphy, set fire to the Union supplies, abandoned his post, and marched his 2,000-man brigade back to Corinth. Murphy’s superior, Rosecrans, relieved Murphy of his command and later had the colonel court-martialed for his actions.

Price Plans to Attack Grant

Now in control of Iuka, Price settled in to await Major General Earl Van Dorn’s 7,000-man force from the Department of Southern Mississippi and East Louisiana. The two generals intended to merge their armies and attack Grant’s supply and communication lines as they moved north to join Bragg.

Grant Plans to Attack Rebels at Iuka

Ever the aggressor, Grant had no intention to sit by and let the two Confederate armies unite. Instead, using a plan suggested by Rosecrans, Grant dispatched Major General Edward O.C. Ord and 8,000 soldiers from the Army of the Tennessee east along the Memphis & Charleston Railroad and then northeast to a position where they could attack Iuka from the northwest. Grant also sent Rosecrans and 9,000 soldiers south along the Mobile & Ohio Railroad and then east to a position where they could attack Iuka from the southwest. Grant accompanied Ord’s headquarters during the expedition.

Federal Delay

Ord’s force reached Iuka on the evening of September 18, ahead of Rosecrans, who had to travel farther and along poorer roads. Rosecrans informed Grant that he would not be positioned to attack until the next day. Grant and Ord agreed to hold off their assault until they heard the sounds of Rosecrans fighting the enemy.

September 19, 1862: Clash at Iuka

Rosecrans resumed his march at 4:30 a.m. on September 19 and was within two miles of Iuka by the afternoon. By then, Price, who observed Rosecrans’ advance, attacked first. The ensuing battle lasted about three hours and ended when darkness fell. Realizing how dangerous his situation had become, Price evacuated Iuka overnight, using a road that Rosecrans had not secured.

Aftermath

The Battle of Iuka was a hollow Union victory. Confederate casualties nearly doubled Union losses. The Confederacy suffered 1,516 casualties (263 killed, 692 wounded, and 561 captured/missing), and the Union lost 790 soldiers (144 killed, 598 wounded, and 40 captured/missing). Union forces also regained their supply depot at Iuka. Still, the failure to coordinate the Union attack and to involve Ord’s forces enabled Price and Van Dorn to rendezvous and merge their forces into the Army of West Tennessee. Their new army assaulted Corinth the next month.

After the battle, controversy swirled regarding why Ord’s troops never entered the fray. Grant and Ord claimed that unusual weather conditions, marked by high winds, prevented them from hearing the sounds of the battle to their south. Some Union soldiers later swore that there were no high winds that day, and others stated that they not only heard the battle but that they could see smoke on the horizon.

Rumors swirled that Grant did not order the attack because he was “dead drunk,” although such allegations were never proved. In his original after-battle report, dated September 20, 1862, Grant praised Rosecrans’ performance. In a second report, submitted on October 22, after Rosecrans filed his own report and after Rosecrans received considerable praise for his actions at Iuka, Grant was less complimentary. Some historians speculate that the Battle of Iuka may have been the source of differences between the two men that ultimately led to Grant relieving Rosecrans of his command at Chattanooga a little over one year later.

Timeline

  • 1862, January 10 — Union forces won the Battle of Middle Creek and helped force Confederate troops out of eastern Kentucky.
  • 1862, January 19 — Union forces won the Battle of Mill Springs and pushed Confederate forces toward Tennessee.
  • 1862, February 6 — Union forces won the Battle of Fort Henry.
  • 1862, February 11–16 — Union forces won the Battle of Fort Donelson.
  • 1862, April 6-7 — Union forces won the Battle of Shiloh.
  • 1862, May 30— Union forces captured the railroad center at Corinth, Mississippi.
  • 1862, May 31-June 1 — Joseph Johnston suffered a wound at the Battle of Seven Pines.
  • 1862, June 17 — Confederate President Jefferson Davis removed P.G.T. Beauregard from command and replaced him with Braxton Bragg.
  • 1862, June — Bragg launched the Confederate Heartland Campaign.
  • 1862, August — Robert E. Lee drove the Army of the Potomac from the Virginia Peninsula.
  • 1862, August — Bragg threatened Union control of Kentucky.
  • 1862, September 13 — Sterling Price reached Iuka, and Robert C. Murphy abandoned the Union supply depot.
  • 1862, September 18 — Edward Ord reached the area near Iuka ahead of William S. Rosecrans.
  • 1862, September 19
    • Rosecrans advanced toward Iuka, and Price attacked his force.
    • Darkness stopped the battle after about three hours of fighting.
    • Price evacuated Iuka during the night along an unguarded road.

AP US History

Definition

Battle of Iuka (1862) — The Battle of Iuka was fought in Mississippi on September 19, 1862, during the Iuka and Corinth Operations. Union General William S. Rosecrans advanced toward Iuka while Union General Edward Ord approached from the northwest. Confederate General Sterling Price attacked Rosecrans before the planned Union assault. Ord’s troops never entered the battle, and Price escaped overnight. Although the Union regained Iuka, Price later joined General Earl Van Dorn to attack Corinth, Mississippi.

Alignment

The Battle of Iuka is part of the following AP US History sections:

Citation Information

The following information is provided for citations, including APA Style, Chicago Style, and MLA Style.

  • Article Title Battle of Iuka
  • Date September 19, 1862
  • Author
  • Keywords Battle of Iuka, Battle of Iuka AHC, Battle of Iuka APUSH, Battle of Iuka Civil War, Battle of Iuka summary, Battle of Iuka facts, Battle of Iuka significance, Battle of Iuka history, Battle of Iuka timeline, Battle of Iuka images, Battle of Iuka map, Battle of Iuka historical marker
  • Website Name American History Central: The Encyclopedia of American History
  • Publisher American History Central
  • Producer R.Squared Communications, LLC
  • Date Published
  • Last Update August 7, 2026
  • Access Date October 10, 2026

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