|Country United States|
Disbanded June 15, 1865
|Active August 30, 1862 – June 15, 1865|
Engagements American Civil War Battle of Perryville Battle of Stone's River Battle of Chickamauga Siege of Chattanooga Battle of Missionary Ridge Battle of Kennesaw Mountain Battle of Jonesborough Battle of Nashville
The 100th Regiment Illinois Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 100th Illinois Infantry was organized at Joliet, Illinois, and mustered into Federal service on August 30, 1862. The regiment was mustered out on June 12, 1865, and discharged at Chicago, Illinois, on June 15, 1865.
Total strength and casualties
The regiment suffered 7 officers and 73 enlisted men who were killed in action or who died of their wounds and 134 enlisted men who died of disease, for a total of 214 fatalities.