| 3rd Air Defense Artillery Regiment | |
|---|---|
 | |
| Active | 1821 |
| Country |  United States |
| Branch |  United States Army |
| Type | Air defense artillery |
| Motto(s) | NON CEDO FERIO (yield not, strike). |
| Engagements | War of 1812 Indian Wars Mexican War American Civil War Spanish–American War World War II Korean War Southwest Asia |
| Commanders | |
| Notable commanders | George Henry Thomas Braxton Bragg Walker Keith Armistead Robert Anderson Romeyn B. Ayres |
| Insignia | |
| Distinctive unit insignia |  |
The 3rd Air Defense Artillery Regiment is an air defense artillery regiment of the United States Army, first formed in 1821 as the 3rd Regiment of Artillery.[1]