3d Battalion, 1st Marine Regiment

"Thundering Third"

1st Marine Division, Camp Pendleton, Calif.

The mission of the Marine Infantry Battalion is to locate, close with, and destroy the enemy by fire and maneuver, or to repel his assault by fire and close combat.

LtCol John (Jack) Roma
Commanding Officer, 3rd Battalion, 1st Marine Regiment
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SgtMaj C. R. Denham
Sergeant Major, 3rd Battalion, 1st Marine Regiment
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Aussies reconnect with U.S. Marines at the Blue Diamond
November 4, 2019

A 20-mile tactical march into a demanding combat eval ― this Marine regiment just did it
October 10, 2019

Media Advisory
October 7, 2019

1st Marine Division Arrests
July 25, 2019

3D printing in the Marine Corps: An industry of untapped potential
February 26, 2019

Great Love Happens Once: The Enduring Story of John and Lena Basilone
February 14, 2019

Iron Fist 2019 Strengthens U.S.-Japan Alliance; Certifies ARDB
February 13, 2019

From temporary to permanent: the story of the 1st Marine Division White House
January 30, 2019

Television series “SEAL Team” films on Camp Pendleton
January 28, 2019

5th Marine Regiment Participates in Apprenticeship with Mercedes-Benz
January 25, 2019