Key facts about the Battle of Fort Donelson.
Date and Location
- February 12-16, 1862
- Stewart County, Tennessee
- Federal Penetration up the Cumberland and Tennessee Rivers
Principal Union Commanders
- Brigadier General Ulysses S. Grant
- Flag-Officer A.H. Foote
Principal Confederate Commanders
Union Forces Engaged
- Army of the Tennessee
- Western Flotilla
Confederate Forces Engaged
- Army of Central Kentucky
- Fort Henry Garrison
Number of Union Soldiers Engaged
- Roughly 25,000
Number of Confederate Soldiers Engaged
- Roughly 16,000
Estimated Union Casualties
- 2,691 (killed, wounded and missing/captured)
Estimated Confederate Casualties
- 13,846 casualties (killed, wounded and missing/captured)
- Union victory
- 507 Union soldiers were killed at the Battle of Fort Donelson.
- 327 Confederate soldiers were killed at the Battle of Fort Donelson.
- Ulysses S. Grant’s terms for the surrender of Fort Donelson earned him the nickname, “Unconditional Surrender” Grant.
- Ulysses S. Grant’s capture of Fort Donelson, along with the previous capture of Fort Henry, were the first significant Union victories in the war.
- Ulysses S. Grant’s capture of Fort Donelson, along with the previous capture of Fort Henry, opened two great rivers as avenues of invasion to the heartland of the South.
- After the capture of Fort Donelson, Ulysses S. Grant was promoted to major general of volunteers, second in seniority only to Henry W. Halleck in the West.