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1st Marine Logistics Group
1st Maintenance Battalion


1st Maintenance Battalion provides intermediate-level maintenance support, to include wheeled and tracked vehicle recovery, salvage and disposal, and general maintenance support, for I MEF's ground equipment in order to improve and sustain MAGTF's combat power. Provide Secondary Reparable Management, including inventory management, storage, financial accounting, and maintenance for secondary and low-density reparables.


1st Maintenance Battalion Leaders

Commanding Officer, 1st Maintenance Battalion

Lieutenant Colonel Joseph R. Petkus

Lieutenant Colonel Petkus is originally from Milford, Michigan.  In 2004, he graduated from The United States Naval Academy with a Bachelor of Science in Chemistry and was commissioned into the United States Marine Corps.  After attending The Basic School, he completed Ground Supply Officer Course...

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Sergeant Major 1st Maintenance Battalion

Sergeant Major Geronimo Guzman

Sergeant Major Guzman enlisted in the Marine Corps in November of 1998. He attended recruit training aboard Marine Corps Recruit Depot, San Diego, California. He completed Marine Combat Training and reported to Camp Johnson, Camp Lejeune for the Defense Basic Preservation & Packing Course,...

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1st Marine Logistics Group