1st Marine Division

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I Marine Expeditionary Force
Camp Pendleton, California

Who we are

The 1st Marine Division is the oldest, largest and most decorated Marine division. Headquartered at Camp Pendleton, California, the Division is a force of 20,000 men and women organized to conduct combat operations. The 1st Marine Division is an adaptable expeditionary force in readiness; generating, deploying and returning forces in support of global force management. The Division stands ready to conduct contingency response requirements and is prepared to deploy as a scalable ground combat element to defeat peer, near-peer and hybrid threats across the range of military operations.

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U.S. Marines with 3rd Bn., 7th Marines and 1st CEB conduct company attacks during Range 400

U.S. Marine Corps Lance Cpl. Carter Johnson, a combat engineer with Charlie company, 1st Combat Engineer Battalion, 1st Marine Division, holds an...

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I MEF Marines participate in Operation Clean Sweep III at Camp Pendleton

U.S. Marines with I Marine Expeditionary Force, fill in a pothole as part of Operation Clean Sweep on Marine Corps Base Camp Pendleton, California,...

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FSB, 11th Marines hold company fire support team competition

U.S. Marines with Fire Support Battalion, 11th Marine Regiment, 1st Marine Division, hike to their next station during the company fire support team...

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1st CEB Marines host Warrior Family Day

Nayos Thammaraks, a volunteer with Friends of the 1st CEB, fires an M27 infantry automatic rifle during Warrior Family Day at Marine Corps Base Camp...

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2nd Bn., 11th Marines participate in Sept. 11 Memorial Hike

U.S. Marines assigned to 2nd Battalion, 11th Marine Regiment, 1st Marine Division, participate in the Sept. 11 Memorial Hike at Marine Corps Base...

75 years ago, the Inchon landing: through the eyes of Sgt. Thomas P. Tragus
1st Marine Division
Sept. 12, 2025 | 1:19
75 years ago, the Inchon landing: through the eyes of Sgt. Thomas P. Tragus
1st Marine Division
Sept. 12, 2025 | 1:19
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75 years ago, the Inchon landing: through the eyes of Sgt. Thomas P. Tragus
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