Jackson's decisive victory at Winchester drove Union forces across the Potomac and demonstrated the strategic value of force concentration in the Shenandoah Valley Campaign.
Key Facts
- Date
- May 25, 1862
- Theater
- Shenandoah Valley, Virginia
- Confederate Commander
- Maj. Gen. Thomas J. 'Stonewall' Jackson
- Union Commander
- Maj. Gen. Nathaniel P. Banks
- Outcome
- Confederate victory; Union forces fled to Maryland
- Campaign
- Jackson's Shenandoah Valley Campaign
Location
Cause → Event → Consequence
During the American Civil War, Confederate Maj. Gen. Stonewall Jackson conducted an aggressive campaign through the Shenandoah Valley to threaten Union positions and prevent Federal reinforcement of other theaters. His strategy relied on rapid movement and concentration of force against numerically comparable or larger Union contingents.
On May 25, 1862, Jackson's Confederate forces attacked and enveloped the right flank of Maj. Gen. Nathaniel P. Banks's Union Army in and around Winchester and Frederick County, Virginia. Jackson's early achievement of force concentration allowed him to press the attack more decisively than in prior engagements of the campaign.
The Union forces under Banks were routed and pursued as they fled across the Potomac River into Maryland. The Confederate victory was more complete than Jackson's earlier Shenandoah battles, alarming Washington and compelling the Federal government to withhold troops from other operations to address the threat posed by Jackson's army.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Maj. Gen. Thomas J. 'Stonewall' Jackson.
Side B
1 belligerent
Maj. Gen. Nathaniel P. Banks.