1st Battalion 3d Marines

MAAW Range

U.S. Marines with 1st Battalion, 3d Marines, employ a M3E1 Multi-purpose Anti-armor Anti-personnel Weapon System during a live-fire range as part of Service Level Training Exercise 1-22 at Marine Corps Air Ground Combat Center Twentynine Palms, California, Sept. 24, 2021. This training provides effective and intense repetitions in an expeditionary environment to ensure 3d Marines remains lethal and ready to fight now. (U.S. Marine Corps photo by Cpl. Juan Carpanzano)

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Unmanned Aircraft Sytsems

U.S. Marine Corps Cpl. Bruce Stombaugh, an intelligence specialist with 1st Battalion, 3d Marines, launches a RQ-20 puma system as part of Service Level Training Exercise 1-22 at Marine Corps Air Ground Combat Center Twentynine Palms, California, Sept. 24, 2021. New and advanced surveillance systems enhance 3d Marines ability to command and control its forces in an expeditionary and contested environment. Stombaugh is a native of Indianapolis, Indiana. (U.S. Marine Corps photo by Cpl. Alexis Moradian)

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Urban Military Breaching Charges

U.S. Marines with 1st Battalion, 3d Marines, conduct Urban Military Breaching Charges as part of Service Level Training Exercise 1-22 at Marine Corps Air Ground Combat Center Twentynine Palms, California, Sept. 23, 2021. SLTE 1-22 provides effective and intense live-fire training in an expeditionary environment to ensure 3d Marines remains lethal, and ready to fight now. (U.S. Marine Corps photo by Cpl. Alexis Moradian)

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Large Scale Exercise 21

U.S. Marine Corps Gunnery Sgt. Vincent Havelaar, platoon sergeant, 1st Battalion, 3d Marines, conducts offensive operations during Large Scale Exercise 21 at Marine Corps Training Area Bellows, Hawaii, Aug. 10, 2021. LSE21 is a live, virtual, and constructive exercise employing integrated command and control, intelligence, surveillance, reconnaissance, and sensors across the joint force to expand battlefield awareness, share targeting data, and conduct long-range precision strikes in support of naval operations in a contested and distributed maritime environment. (U.S. Marine Corps photo by Cpl. Jacob Wilson)

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Deactivation ceremony for Weapons Company

U.S. Marines with 1st Battalion, 3d Marines, retire the guidon during a deactivation ceremony for Weapons Company on Marine Corps Base Hawaii, Jan. 22, 2021. 1st Battalion, 3d Marines held the ceremony to commemorate the history of Weapons Company, which had been active since 1942. (U.S. Marine Corps photo by Cpl. Jacob Wilson)

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1st Battalion 3d Marines Leaders

Commanding Officer

Lieutenant Colonel Adam R. Sacchetti

Lieutenant Colonel Adam Sacchetti is the Commanding Officer of 1st Battalion, 3d Marine Regiment. A Native of Walpole Massachusetts, he was Commissioned as a 2nd Lieutenant Following Graduation with honors from Norwich University with a degree in Criminal Justice. Following graduation of the Basic...

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Official Photo

Sergeant Major

Sergeant Major Christopher L. Rivera

Sergeant Major Rivera enlisted in the Marine Corps in July 2000, and attended recruit training at MCRD, Parris Island, South Carolina 2nd Battalion, Fox Company.After Recruit Training, he completed Marine Combat Training, where he received orders to Ft. Leonard Wood, Missouri for MOS School as a...

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S1 (Admin)

Billet	Phone Number
S-1 OFFICER/ADJUTANT	DSN: 315-457-2581 COM: 808-257-2581
S-1 CHIEF	DSN: 315-457-2290 COM: 808-257-2290

Deployment Readiness Coordinator

Billet	Phone Number
DEPLOYMENT READINESS COORDINATOR	PHONE: 808-220-6424 EMAIL: 3DMARREG_DRC@usmc.mil

OOD & DNCO

Billet	Phone Number
OOD	DSN: 315-457-0737 COM: 808-257-0737 CELL: 808-342-0442
ALPHA DNCO	CELL: 808-927-6588
BRAVO DNCO	CELL: 808-927-6634
CHARLIE DNCO	CELL: 808-927-6586
WPNS DNCO	CELL: 808-927-6578
H&S DNCO	DSN: 315-457-1678/1568 COM: 808-257-1678/1568