| FOB Delhi | |
| Ensign: | Flag of the International Security Assistance Force.svg |
| Ensign Size: | 150px |
| Location: | Garmsir, Garmsir District, Helmand Province |
| Country: | Afghanistan |
| Pushpin Map: | Afghanistan |
| Pushpin Label: | FOB Delhi |
| Pushpin Map Caption: | Shown within Afghanistan |
| Ownership: | International Security Assistance Force (ISAF) |
| Operator: | United States Marine Corps Afghan National Army (ANA) |
| Built: | January |
| Used: | 2006– |
| Elevation: | 869m (2,851feet) |
| H1-Number: | 01 |
| H1-Length: | 30m (100feet) |
| H1-Surface: | Concrete |
Forward Operating Base Delhi in Afghanistan was a military expeditionary base occupied by the United States Marine Corps. It was along the Helmand River Valley in Garmsir at an abandoned Agricultural College building.[1]
The base was originally established by members of the Ministry of Defence and used by British units under Operation Herrick until 2008 when the base was taken over by the 24th Marine Expeditionary Unit and was transferred to the British Army regiment, The Light Dragoons of Task Force Helmand, on September 8, 2008.[2]
In June 2009, it was transferred to the U.S. Marines of Task Force Leatherneck.
It has been used by:
See main article: Forward Operating Base Delhi massacre. On August 10, 2012 an Afghan teenager entered an on-base gym and fired an AK-47 killing 3 US Marines and injuring another. The incident is being investigated by the Naval Criminal Investigative Service (NCIS) and the US Attorney's Office in New York.