The Ten Costliest Battles of the Civil War

Based on total casualties (killed, wounded, missing, and captured)


#1 -- Battle of Gettysburg

Date: July 1-3, 1863
Location:Pennsylvania
Confederate Commander: Robert E. Lee
Union Commander: George G. Meade
Confederate Forces Engaged: 75,000
Union Forces Engaged: 82,289
Victory: Union
Casualties: 51,112 (23,049 Union and 28,063 Confederate)


#2 -- Battle of Chickamauga

Date: September 19-20, 1863
Location: Georgia
Confederate Commander: Braxton Bragg
Union Commander: William Rosecrans
Confederate Forces Engaged: 66,326
Union Forces Engaged 58,222
Victory: Confederacy
Casualties: 34,624 (16,170 Union and 18,454 Confederate)


#3 -- Battle of Chancellorsville

Date: May 1-4, 1863
Location: Virginia
Confederate Commander: Robert E. Lee
Union Commander: Joseph Hooker
Confederate Forces Engaged: 60,892
Union Forces Engaged: 133,868
Victory: Confederacy
Casualties: 30,099 (17,278 Union and 12,821 Confederate)


#4 -- Battle of Spotsylvania

Date: May 8-19, 1864
Location: Virginia
Confederate Commander: Robert E. Lee
Union Commander: Ulysses S. Grant Confederate Forces Engaged: 50,000
Union Forces Engaged: 83,000
Victory: Confederacy
Casualties: 27,399 (18,399 Union and 9)000 Confederate)


#5 -- Battle of Antietam

Date: September 17, 1862
Location: Maryland
Confederate Commander: Robert E. Lee
Union Commander: George B. McClellan
Confederate Forces Engaged: 51,844
Union Forces Engaged: 75,316
Victor: Inconclusive (Strategic Union Victory)
Casualties: 26,134 (12,410 Union and 13,724 Confederate)


#6 -- Battle of The Wilderness

Date: May 5-7, 1864
Location: Virginia
Confederate Commander: Robert E. Lee
Union Commander: Ulysses S. Grant
Confederate Forces Engaged: 61,025
Union Forces Engaged: 101,895
Victory: Inconclusive
Casualties: 25,416 (17,666 Union and 7,750 Confederate)


#7 -- Battle of Second Manassas

Date: August 29-30, 1862
Location: Virginia
Confederate Commander: Robert E. Lee
Union Commander: John Pope
Confederate Forces Engaged: 48,527
Union Forces Engaged: 75,696
Victory: Confederacy
Casualties: 25,251 (16,054 Union and 9,197 Confederate)


#8 -- Battle of Stone's River

Date: December 31, 1862
Location: Tennessee
Confederate Commander: Braxton Bragg
Union Commander: William S. Rosecrans
Confederate Forces Engaged: 37,739
Union Forces Engaged: 41,400
Victory: Union
Casualties: 24,645 (12,906 Union and 11,739 Confederate)


#9 -- Battle of Shiloh

Date: April 6-7, 1862
Location: Tennessee
Confederate Commander: Albert Sidney Johnston - P. G. T. Beauregard
Union Commander: Ulysses S. Grant
Confederate Forces Engaged: 40,335
Union Forces Engaged: 62,682
Victory: Union
Casualties: 23,741 (13,047 Union and 10,694 Confederate)


#10 -- Battle of Fort Donelson

Date: February 13-16, 1862
Location: Tennessee
Confederate Commander: John B. Floyd - Simon B. Buckner
Union Commander: Ulysses S. Grant
Confederate Forces Engaged: 21,000
Union Forces Engaged: 27,000
Victory: Union
Casualties: 19,455 (2,832 Union and 16,623 Confederate)