21st Illinois Infantry Regiment

21st Regiment Illinois Volunteer Infantry
21st Regiment Illinois Volunteer Infantry
Active	June 28, 1861–December 16, 1865
Country	United States
Allegiance	Union
Branch	Infantry
Engagements	Siege of Corinth; Battle of Perryville; Battle of Stones River; Tullahoma Campaign; Battle of Chickamauga; Battle of Kennesaw Mountain; Battle of Peachtree Creek; Battle of Jonesboro; Battle of Franklin; Battle of Nashville;
Commanders
Notable; commanders	Ulysses S. Grant

The 21st Regiment Illinois Volunteer Infantry was a volunteer infantry regiment that served in the Union Army during the American Civil War.