I MEF Leaders

I Marine Expeditionary Force Leaders

Commanding General, I Marine Expeditionary Force

Lt. Gen. Karsten "Hazel" Heckl

Lieutenant General Karsten "Hazel" Heckl assumed command of I Marine Expeditionary Force on 31 July 2020.A native of Stone Mountain Georgia, Lieutenant General Heckl graduated from Georgia State University and was commissioned in April 1988.  He was designated an unrestricted Naval Aviator in...

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Deputy Commanding General, I Marine Expeditionary Force

Brig. Gen. John F. Kelliher III

Brigadier General John F. Kelliher III is a native of Hanson, Massachusetts. He graduated from Embry-Riddle Aeronautical University with a Bachelor’s of Science degree in Aerospace Studies in April 1992. Upon graduation he was commissioned a Second Lieutenant and reported to The Basic School in...

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Chief of Staff, I Marine Expeditionary Force

Colonel George C. Schreffler, III

Colonel Schreffler was born and raised in Harrisburg, Pennsylvania. He graduated from the Virginia Military Institute with a bachelor of art’s degree in history and was commissioned a second lieutenant in May 1994. Following graduation from the Basic Officer Course and the Infantry Officer Course at...

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Sergeant Major, I Marine Expeditionary Force

Sgt. Maj. Terrence C. Whitcomb

Sergeant Major Whitcomb began Marine Corps Recruit Training on 14 September 1993 at Marine Corps Recruit Depot, San Diego, California with Company C, 1st Recruit Training Battalion.  He was meritoriously promoted to Private First Class and graduated Recruit Training on 10 December 1993. Following...

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Command Master Chief

CMDCM(SW/AW/IW) Toby A. Ruiz

 Though a native of Montebello, California, Master Chief Ruiz calls Monte Vista, Colorado home.  He enlisted in the Navy in March 1991, reported to basic training at RTC Great Lakes, Illinois and completed Signalman “A” School at NTC Orlando, Florida.  After serving two tours as a collateral-duty...

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