2nd Wisconsin Infantry Regiment
| 2nd Wisconsin Infantry Regiment | |
|---|---|
| Active | June 11, 1861 – July 2, 1864 | 
| Country | United States | 
| Allegiance | Union | 
| Branch | Infantry | 
| Size | Regiment | 
| Nickname(s) | "Ragged Asstetical" or "Ragged Ass Second" | 
| Engagements | American Civil War | 
| Commanders | |
| Colonel | S. Park Coon | 
| Colonel | Edgar O'Connor | 
| Colonel | Lucius Fairchild | 
| Colonel | John Mansfield | 
| Colonel | George B. Ely | 
| Insignia | |
| I Corps badge (1st Division) | |
| Wisconsin U.S. Volunteer Infantry Regiments 1861-1865 | ||||
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The 2nd Wisconsin Infantry Regiment was an infantry regiment that served in the Union Army during the American Civil War. It spent most of the war as a member of the famous Iron Brigade of the Army of the Potomac. It suffered the largest number of casualties as a percentage of its total enlistment of any Union Army unit in the war.: 65