66th Illinois Infantry Regiment
| 66th Illinois Veteran Volunteer Infantry Regiment (Western Sharpshooters) | |
|---|---|
| Active | November 23, 1861, to July 7, 1865 |
| Country | United States |
| Allegiance | Union |
| Branch | Infantry (Sharpshooters) |
| Equipment | Dimick Long Rifle and Henry Repeating Rifle |
| Engagements | Battle of Mount Zion Church Battle of Roan's Tan Yard (Silver Creek) Battle of Fort Donelson Battle of Shiloh Battle of Phillips Creek Siege of Corinth Battle of Iuka Battle of Corinth Hatchie River Battle of Snake Creek Gap Battle of Resaca Battle of Lay's Ferry Battle of Rome Cross Roads Battle of New Hope Church Battle of Dallas Battle of Kennesaw Mountain Battle of Ruff's Mill Nickajack Creek Battle of Atlanta Siege of Atlanta Battle of Lovejoy's Station Battle of Jonesborough March to the Sea Battle of Eden Cross Roads Second Battle of Fort McAllister Carolinas Campaign Battle of Congaree Creek Battle of Bentonville |
The 66th Illinois Veteran Volunteer Infantry Regiment (Western Sharpshooters) originally known as Birge's Western Sharpshooters and later as the "Western Sharpshooters-14th Missouri Volunteers", was a specialized regiment of infantry sharpshooters that served in the Union Army during the American Civil War. The regiment was intended, raised, and mustered into Federal service as the Western Theater counterpart to Army of the Potomac's 1st and 2nd United States Volunteer Sharpshooters ("Berdan's Sharpshooters").