The I Marine Expeditionary Force ("I" pronounced "One") is a Marine Air Ground Task Force (MAGTF) of the United States Marine Corps primarily composed of the 1st Marine Division, 3rd Marine Aircraft Wing, and 1st Marine Logistics Group. It is based at Marine Corps Base Camp Pendleton.
|I Marine Expeditionary Force|
|Active||8 November 1969 – present|
|Country||United States of America|
|Branch||United States Marine Corps|
|Type||Marine Air-Ground Task Force|
|Role||Expeditionary combat force|
|Part of||U.S. Marine Forces Pacific|
|Garrison/HQ||MCB Camp Pendleton, California, U.S.|
|LtGen George W. Smith Jr.|
|Gen Joseph F. Dunford, Jr., Gen Anthony Zinni, Gen Michael Hagee, Gen James T. Conway, Gen James Mattis, Gen John F. Sattler|
I Marine Expeditionary Force is the largest of the three MEFs in the Fleet Marine Force and is often referred to as the "Warfighting MEF" for its consistent involvement and contributions in major armed conflicts. It is presently commanded by Lt. Gen. George W. Smith Jr. The deputy commander is Brig. Gen. Ryan S. Rideout.
Pronunciation of the Roman numeral designator: As a Roman numeral the capital letter "I", representing one (1), is properly pronounced as "One". However, there are some who erroneously pronounce the number as either "First", or either intentionally, or unknowingly, pronounce it as "Eye", as in the letter "I".
The convention of using Roman numerals to designate a MEF, which is itself the Marine Corps equivalent organization to an Army corps, stems from the U.S. Army practice that began in the American Civil War, and continues today, of numbering corps (two or more divisions with supporting troops, and sometimes including separate brigades, regiments, groups, or battalions, all under a unified corps headquarters, usually commanded by a lieutenant general) with Roman numerals. Corps, themselves being the first-level sub-unit of a "field army", or a numbered, or named, army (e.g., First U.S. Army, or the Army of the Potomac).
During the First World War, the 4th Marine Brigade, as part of the U.S. Army 2nd Infantry Division, came under the U.S. Army I Corps, American Expeditionary Forces. With the expansion of the Marine Corps to six divisions and five air wings during the Second World War, the Marine Corps created two "Amphibious Corps", I Marine Amphibious Corps (later re-designated as III Amphibious Corps) and V Amphibious Corps, continuing the custom begun by the Army. Modern Marine Expeditionary Forces, or MEFs (for a time known as Marine Amphibious [italics added] Forces, or MABs) continue the U.S. Marine Corps legacy as corps-equivalent organizations designated by Roman numerals.
When directed, I MEF deploys and is employed as a Marine Air Ground Task Force (MAGTF) in support of Combatant Commander (COCOM) requirements for contingency response or Major Theater War; with appropriate augmentation, serves as the core element of a Joint Task Force (JTF); prepares and deploys combat-ready MAGTF's to support COCOM presence and crisis response; and supports service and COCOM initiatives as required.
- Ground combat element: 1st Marine Division
- Aviation combat element: 3rd Marine Air Wing
- Logistics combat element: 1st Marine Logistics Group
- Command element: I Marine Expeditionary Force Information Group
- 1st Marine Expeditionary Brigade
- 11th Marine Expeditionary Unit
- 13th Marine Expeditionary Unit
- 15th Marine Expeditionary Unit
- Operation Desert Shield – Southwest Asia – August 1990 – April 1991
- Operation Desert Storm – Southwest Asia – August 1990 – April 1991
- Operation Restore Hope- December 1992 – May 1993
- Operation Southern Watch – Iraq – January 1998 – February 1998
- Operation Desert Thunder – Iraq – February 1998 – June 1998
- Operation Enduring Freedom – Kuwait, Afghanistan – November 2002
- Operation Iraqi Freedom – Iraq – March 2003 – 2010
List of commandersEdit
|Portrait||Name||Took office||Left office||Term length|
Walter E. Boomer
|15 August 1990||6 September 1991||1 year, 22 days||-|
Robert B. Johnston
|6 September 1991||July 1993||~1 year, 298 days||-|
George R. Christmas
|July 1993||July 1994||~1 year, 0 days||-|
|July 1994||October 1996||~2 years, 92 days||-|
Carlton W. Fulford Jr.
|October 1996||April 1998||~1 year, 182 days||-|
Bruce B. Knutson Jr.
|April 1998||7 July 2000||~2 years, 97 days||-|
Michael W. Hagee
|7 July 2000||18 November 2002||2 years, 134 days|||
James T. Conway
|18 November 2002||12 September 2004||1 year, 299 days||-|
John F. Sattler
|12 September 2004||14 August 2006||1 year, 336 days|||
|14 August 2006||5 November 2007||1 year, 83 days|||
Samuel T. Helland
|5 November 2007||16 October 2009||2 years, 348 days|||
|16 October 2009||19 October 2010||1 year, 3 days|||
Thomas D. Waldhauser
|19 October 2010||12 September 2012||1 year, 329 days|||
John A. Toolan
|12 September 2012||11 July 2014||1 year, 302 days|||
David H. Berger
|11 July 2014||27 July 2016||2 years, 16 days|||
Lewis A. Craparotta
|27 July 2016||30 July 2018||2 years, 3 days|||
|30 July 2018||31 July 2020||2 years, 1 day|||
|31 July 2020||23 September 2021||1 year, 54 days|||
George W. Smith Jr.
|23 September 2021||Incumbent||227 days|||
- "I Marine Expeditionary Force". Retrieved 1 August 2020.
- Reynolds Baghdad, Basrah and Beyond, pg. 169.
- "Lieutenant General Michael W. Hagee, Commanding General, I Marine Expeditionary Force". U.S. Marine Corps. Archived from the original on 29 November 2001.
- Sgt. Robert E. Jones Sr. (12 September 2004). "LT. GEN. SATTLER TAKES COMMAND OF I MEF". U.S. Marine Corps. Retrieved 16 May 2021.
- Walker, Mark (15 August 2006). "Mattis assumes command of I Marine Expeditionary Force". The San Diego Union-Tribune. Retrieved 16 May 2021.
- Cpl. Bobbie Curtis (22 October 2009). "Marine general caps a 41-year career at Camp Lejeune". Dvidshub.net. Retrieved 16 May 2021.
- Cpl. Monty Burton (19 October 2010). "Dunford passes I MEF to Waldhauser". Dvidshub.net. Retrieved 16 May 2021.
- Cpl. Jennifer Pirante (12 September 2012). "I MEF, MARCENT WELCOME NEW LEADERS". I MEF. Retrieved 16 May 2021.
- Hlad, Jennifer (12 July 2014). "Change of command at Camp Pendleton's 1st Marine Expeditionary Force". Stripes. Retrieved 16 May 2021.
- Fuentes, Gidget (28 July 2016). "Marine Corps' I MEF changes hands". USNI News. Retrieved 16 May 2021.
- "LT. GEN. CRAPAROTTA COMPLETES TOUR AS I MEF COMMANDING GENERAL". U.S. Marine Corps. 24 July 2018. Retrieved 17 May 2021.
- "I MARINE EXPEDITIONARY FORCE CHANGE OF COMMAND". U.S. Marine Corps. Retrieved 17 May 2021.
- "I MEF Change of Command Ceremony 2021 [Image 7 of 7]". DVIDS. Retrieved 27 September 2021.
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