1st Marine Division
3rd Battalion, 5th Marines

Our Mission

3rd Battalion, 5th Marines deploys as a Battalion Landing Team to any operating environment and defeats our enemies across the entire spectrum of warfare.


3rd Battalion, 5th Marine Regiment Leaders

LtCol Benjamin M. Middendorf
Commanding Officer, 3rd Battalion, 5th Marines

LtCol Benjamin M. Middendorf is originally from Oronoco, MN and enlisted in the Minnesota Army

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SgtMaj Michael A. DeQuattro
Sergeant Major, 3rd Battalion, 5th Marines

SgtMaj DeQuattro enlisted in the Marine Corps in July 1999, and attended recruit training at MCRD

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3rd Battalion, 5th Marines
BOX 555483
Camp Pendleton,
CA 92055

Duty Officer:
(760) 763-0396
Duty Cell Phone:
(760) 212-2124

Camp Pendleton
Directory Assistance:
(760) 725-4111


Suicide Prevention Resources


800-273-8255, press 1



Eagle Eyes is the official Marine Corps community awareness SAR program. The program allows anyone to report suspicious activity through the Eagle Eyes website, www.usmceagleeyes.org or dial 911 to report emergencies.