Leaders

26th Marine Expeditionary Unit
(Special Operations Capable)

Commanding Officer, 26th Marine Expeditionary Unit (Special Operations Capable)

Colonel Dennis W. Sampson

Born in Oceanside, California, Colonel Sampson is a third generation United States Marine raised in Cincinnati, Ohio.  He is a 1996 graduate of Norwich University with a Bachelor of Arts degree in Criminal Justice.  He joined the Platoon Leader's Class (PLC) in 1993 and was commissioned through the...

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Executive Officer, 26th Marine Expeditionary Unit (Special Operations Capable)

Lieutenant Colonel Josef H. Wiese

Lieutenant Colonel Wiese is a native of Tacoma, Washington.  He earned a Bachelor of Arts in History from the University of Washington and was commissioned in December of 2004 through the Naval Reserve Officer Training Program. He is a graduate of The Basic School, Infantry Officer Course, Light...

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Sergeant Major, 26th Marine Expeditionary Unit (Special Operations Capable)

Sergeant Major James L. Horr

Sergeant Major Horr began his current assignment as the 26th Marine Expeditionary Unit's Sergeant Major on 10 September 2021.  A native of Wheeling, West Virginia, Sergeant Major Horr enlisted in the Marine Corps in December 1998 and was assigned as an Avionics Technician.  He has attended all...

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