1st Civil Affairs Group
| 1st Civil Affairs Group | |
|---|---|
| Active | 1985-present |
| Country | United States |
| Allegiance | United States of America |
| Branch | United States Marine Corps |
| Type | Civil Affairs |
| Role | Provide civil-military operations support to I MEF or other MAGTF in order to reduce friction between the civilian population and the MEF or other MAGTF. |
| Part of | Marine Forces Reserve |
| Garrison/HQ | Marine Corps Base Camp Pendleton |
| Engagements | Operation Desert Storm Kosovo Force Operation Iraqi Freedom |
| Commanders | |
| Current commander | Colonel Michael Aldridge |
1st Civil Affairs Group (1st CAG) is a civil affairs (CA) unit of the United States Marine Corps based at Camp Pendleton, California. It is one of three civil affairs units in the Marine Corps, all of which are reserve units. 1st CAG tends to support I Marine Expeditionary Force activities.