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I Marine Expeditionary Force
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Official U.S. Marine Corps Website


I MEF provides the Marine Corps a globally responsive, expeditionary, and fully scalable Marine Air-Ground Task Force (MAGTF), capable of generating, deploying, and employing ready forces and formations for crisis response, forward presence, major combat operations, and campaigns. 


Exercise Croix du Sud 2023
1st Marine Logistics Group
May 6, 2023 | 1:43
Exercise Croix du Sud 2023
1st Marine Logistics Group
May 6, 2023 | 1:43
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Exercise Croix du Sud 2023
MRF-D and ADF medical teams participate in combat care exercise
Recon Marines, Indonesian Korps Marinir participate in annual reconnaissance exercise
Hub, Spoke, Node: Delivering Combat Power Any Time, Any Place
11th MEU annual gas chamber
11th MEU Dine Out
13th MEU Cobra Gold 23 Non-Combatant Evacuation Operation
Fueled to Fight – CLR-17 Final Field Mess Evaluation
Year in Review: Celebrating 82 years of the Blue Diamond
VMM-161 Trains for Expeditionary Advanced Base Operations in the Bahamas
Faces of the Blue Diamond: Staff Sgt. Jessica Larsen
Reel: U.S. Marines breach, clear buildings
EOTG | Raid Leaders Course
On the Drums at the Rose Parade
Teaser: I MEF, ESG-3 conclude Exercise Steel Knight 23
Influenced on the court: basketball leads to a career in the Marines
CLR-1 Participates in the First Ever Mental Fitness Obstacle Course
CLR-17 Field Mess Evaluation
I MEF: Any Clime, Any Place
1st Bn., 7th Marines conducts battalion field exercise
U.S. Marines participate in ceremony to mark 80th anniversary of Battle of Guadalcanal
Summer Fury 22: HMLA-267
80 years later, Marine remembers Guadalcanal
Red Ex: Australia Edition
Marines test deployment capabilities as part of REDEX
MRF-D 22: Darrandarra
MRF-D 22: U.S. Marines, Australian Army, and Japan Ground Self-Defence Force Personnel Participate in Exercise Southern Jackaroo
MRF-D 22: We're Gonna Get You out of Here
Exercise Garnet Rattler Teaser
Exercise Crocodile Response: Helping Hands
Photo Information

Mr. Robert D. Hogue, counsel for the Commandant of the Marine Corps, looks out of the window in his office at the Pentagon, Arlington, Va., Aug. 13, 2021. Mr. Hogue was present at the Pentagon during the attack on September 11, 2001. (U.S. Marine Corps photo by Cpl. Morgan L. R. Burgess)

Photo by Lance Cpl. Morgan Burgess

Office of the Assistant Secretary of the Navy Commemorates Juneteenth

19 Jun 2022 | Navy Chief of Information United States Navy

On June 19, 1865, shortly after the fall of the last Confederate forces, U.S. Army Maj. Gen. Gordon Granger in Galveston, Texas issued General Order No. 3 advising the people of the state that all slaves were free. Through the years, the date has become known as Juneteenth. Also known as Freedom Day or Emancipation Day, Juneteenth National Independence Day was made a federal holiday when President Biden signed it into law on June 17, 2021.

In observance of Juneteenth, the office of the Assistant Secretary of the Navy, Manpower and Reserve Affairs released a video message from the Department of the Navy’s Chief Diversity Officer Mr. Robert D. Hogue.

“Juneteenth is an opportunity for us to remind ourselves and each other that emancipation came too late for some,” said Hogue. “Let us remember those who were enslaved, here and elsewhere, so that we might understand just a sliver of the joy that Juneteenth offers.”

While the holiday offers the opportunity to celebrate resilience, resistance, and liberation, Hogue believes it is important to note that although General Granger spoke in Galveston not just of freedom, but "an absolute equality of personal rights," absolute equality was not immediately realized.

In fact, after nearly 250 years of slavery in America, Juneteenth was followed by brutally enforced segregation, Jim Crow, and legally enforced inequality. Black Americans still had to fight for their freedom: their right to vote, to hold political office, to pursue education, to hold property, and to ensure their own safety and prosperity.

Despite all that, and even when confronted with threats of violence and death, African American leaders and activists created institutions of higher learning, local governance, the arts, faith, and more.

Hogue believes these successes were built on the struggles and achievements of those who went before, and secured by the blood shed during the Civil War; that the great price this country has paid to ensure freedom must be matched by a commitment to the American ideal of equality for all. He says Juneteenth calls us to recognize both the sacrifices made and the remarkable achievements, so that our country can move forward fully mindful of its past.

As the DON’s chief diversity officer, Hogue leads the implementation of an enterprise-level DON diversity, equity, and inclusion strategy, synchronizes key policies and initiatives, and ensures alignment with the office of the Secretary of Defense.

Hogue currently serves as the acting DON ASN as well as the principal deputy assistant secretary. In this role, he is responsible for the overall supervision and oversight of DON manpower and reserve component affairs, including the development of programs and policy related to military personnel (active, reserve, retired), their family members, and the civilian workforce. He oversees the DON’s office of equal employment opportunity; sexual assault prevention program office; naval education; manpower, analytics, and human resources systems; diversity, equity, and inclusion; and DON’s lifecycle management of senior executives across the department.

For more information about ASN Mr. Robert D. Hogue, visit or,%20R.pdf

I MEF Leaders

Lt. Gen. George W. Smith Jr.
Commanding General, I Marine Expeditionary Force

Lieutenant General Smith was commissioned through the NROTC program at the University of North Carolina at Chapel Hill in May 1985. A career infantry officer, his assignments in the operating forces include Rifle Platoon Commander and 81mm Mortar Platoon Commander in 2d Battalion, 1st Marines; Logistics Officer and Rifle Company Commander in 1st Battalion, 3d Marines; and Commanding Officer, 1st Force Reconnaissance Company, during which he deployed twice in support of Operation Iraqi Freedom.

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Brig. Gen. Ryan S. “Chick” Rideout
Deputy Commanding General, I Marine Expeditionary Force

Brigadier General Rideout assumed duties as Deputy Commanding General, I Marine Expeditionary Force in July 2021. His previous assignment was serving as Director, Military Advisor Group, Combined Joint Task Force - Operation INHERENT RESOLVE based in Baghdad, Iraq from June of 2020 to June 2021. Fleet Marine Force assignments include: Commanding

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Colonel Brian Rideout
Chief of Staff, I Marine Expeditionary Force

Colonel Rideout holds a baccalaureate degree in Psychology from Ohio Wesleyan University, a Master of Science in Information Technology Management from the Naval Postgraduate School, a Master of Military Studies from Marine Corps University and a Master of Arts in National Security and Strategic Studies from the Naval War College.  He is a graduate

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Sergeant Major Peter A. Siaw
Command Senior Enlisted Leader, I Marine Expeditionary Force

Sergeant Major Peter A. Siaw was born in Chicago, Illinois and began recruit training in April 1993 aboard Marine Corps Recruit Depot San Diego, California. Upon graduation, he was meritoriously promoted to the rank of Lance Corporal and continued to Marine Combat Training aboard Camp Pendleton, California, and Personnel Administration School

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CMDCM(FMF/SW/AW/IW) Charles F. Ziervogel
Command Master Chief

Master Chief Ziervogel enlisted in the Navy in August of 1989. Following Basic Training in Orlando, Florida he successfully completed the Navy Nuclear Power Training Pipeline. From October 1991 to December 1996 he served as a member of Reactor Control Division onboard USS Nebraska (SSBN 739 Gold) through New Construction and Commissioning,

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I Marine Expeditionary Force