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1st Marine Division
1st Marine Regiment Logo
1st Marine Regiment


On order, 1st Marine Regiment deploys as the Ground Combat Element (GCE) for the 1st Marines Expeditionary Brigade (MEB) in support of crisis response operations and provides mission capable battalions in support of enduring and emerging operational requirements in order to meet operational commitments across the range of military operations.

1st Marine Regiment Leaders

Colonel Brendan P. Sullivan
Commanding Officer, 1st Marine Regiment

Colonel Sullivan is a native of Long Island, New York.  He attended Officer Candidate School and was commissioned as a Second Lieutenant following graduation from Iona College in May 1999.  He proceeded to Quantico, Virginia where he attended The Basic School and the Infantry Officer Course. 

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SgtMaj Erick Cortes
Sergeant Major, 1st Marine Regiment

Sergeant Major Cortes enlisted in the Marine Corps on 16 September 1998 from Chicago, IL and attended Recruit Training at 1st Recruit Training Battalion, Marine Corps Recruit Depot San Diego, CA.

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1st Marine Division