| 2nd Bn, 20th Artillery | |
|---|---|
 20th Artillery distinctive unit insignia | |
| Active | 1965–1972 |
| Country | United States |
| Allegiance | USA |
| Branch | Army |
| Type | Aerial artillery |
| Role | General support artillery |
| Part of | 1st Cavalry Division |
| Nickname(s) | Blue Max |
| Motto(s) | "Duty not Reward" |
| 4th Bn, 77th Artillery | |
|---|---|
 77th Artillery distinctive unit insignia | |
| Active | 1969–1972 |
| Country | United States |
| Allegiance | United States of America |
| Branch | Army |
| Type | Aerial artillery |
| Role | General support artillery |
| Part of | 101st Airborne Division |
| Motto(s) | "En Garde" |
| Battery F, 79th Artillery | |
|---|---|
 Distinctive unit insignia | |
| Active | 1972 |
| Country | United States |
| Branch | Army |
| Type | Aerial artillery |
| Role | General support artillery |
| Part of | 3d Brigade, 1st Cavalry Division |
| Motto(s) | "Our Country – Our Regiment" |
Aerial rocket artillery (abbreviated ARA, also called aerial artillery) is a type of armed helicopter unit that was part of the artillery component of the United States Army's two airmobile divisions during the Vietnam War. Controlled by division artillery and not the aviation group, the 2nd Battalion, 20th Artillery, 1st Cavalry Division and the 4th Battalion, 77th Artillery, 101st Airborne Division, along with Battery F, 79th Artillery, 1st Cavalry Division, were the only ARA units fielded during that conflict. The ARA concept disappeared from Army aviation by the mid-1970s, replaced by more generic attack aviation units.