HistoryData
Historical ConflictHardin County

Battle of Shiloh

The Battle of Shiloh was the costliest engagement of the Civil War to that point, with nearly 24,000 casualties across two days of fighting in April 1862.

Duration & Scope

1862 ongoing

< 1 year

Estimated Total Casualties

24K

Key Facts

Date
April 6–7, 1862
Total casualties
~24,000
Union casualties
~2,500 more than Confederate side
Theater
Western Theater, American Civil War
Confederate commander killed
General Albert Sidney Johnston (mortally wounded)

Strategic Narrative Overview

Confederate forces launched a surprise assault on April 6, pushing Union troops back toward the Tennessee River and achieving significant gains. Johnston was mortally wounded during the fighting and command passed to General P. G. T. Beauregard. Overnight, Grant received reinforcements from a detached division and portions of Major General Don Carlos Buell's Army of the Ohio. A Union counterattack on April 7 reversed Confederate gains, forcing the exhausted Confederate army to withdraw southward.

01 / The Origins

By early 1862, Union forces under Major General Ulysses S. Grant had advanced deep into southwestern Tennessee as part of broader Federal strategy to control the Western Theater. The Confederate Army of Mississippi, under General Albert Sidney Johnston, sought to strike Grant's Army of the Tennessee at Pittsburg Landing before it could unite with reinforcements, hoping a decisive blow would reverse Confederate losses in the region and restore Southern control of Tennessee.

03 / The Outcome

The Union held the field, securing a strategic victory in the Western Theater, but at enormous cost. Grant faced heavy public criticism following the battle's surprise nature and the lengthy Union casualty list. Both Union and Confederate high commands faced scrutiny over their decisions. Despite the victory, the battle demonstrated the war's scale and brutality, dispelling early assumptions of a swift conflict and signaling a prolonged, devastating struggle ahead.

Belligerents & Mobilization Analysis

Side A

1 belligerent

Confederate Army of Mississippi
Key Commanders

General Albert Sidney Johnston, General P. G. T. Beauregard.

Side B

1 belligerent

Union Army of the Tennessee / Army of the Ohio
Key Commanders

Major General Ulysses S. Grant, Major General Don Carlos Buell.

Total Casualties (all sides)
24,000
Outcome
Union victory; Confederate army withdrew south; Grant's forces held Pittsburg Landing

Kinetic Engagement Axis

Major engagements timeline (1862–present)Timeline of major military engagements plotted chronologically.1862present1862Battle of Shiloh…Allied1862Battle of Shiloh…Side B

Scroll horizontally to view full axis. Events plotted relatively.

Side A victorySide B victoryInconclusiveDecisive / turning point

Location

Map of Hardin County, United StatesMap of Hardin County, United StatesHardin County, United States