12th Marine Regiment

Talisman Sabre 21

U.S. Marines with 3d Battalion, 12th Marines, 3d Marine Division, fire GMLRS rockets from a High Mobility Artillery Rocket System during Exercise Talisman Sabre 21 on Shoalwater Bay Training Area, Queensland, Australia, July 19, 2021. TS21 supports the U.S. National Defense Strategy by enhancing the ability to protect the homeland and provide combat-credible forces to address the full range of potential security concerns in the Indo-Pacific (U.S. Marine Corps photo by Lance Cpl. Ujian Gosun)

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ARTP 21.2

U.S. Marine Corps Lance Cpl. Isaiah Pena, a field artillery cannoneer with 3d Battalion, 12th Marines, 3d Marine Division, fires a M777A2 Howitzer during Artillery Relocation Training Program 21.2 at Ojojihara Maneuver Area, Japan, July 19, 2021. This training contributes to the defense of Japan and the U.S.-Japan Alliance as the cornerstone of peace and security in the Indo-Pacific region. ARTP provides realistic, live-fire training opportunities to the only permanently forward-deployed artillery unit in the Marine Corps, enabling them to provide precision indirect fires from a distributed environment in support of maritime operations. Pena is a native of El Paso, Texas. (U.S. Marine Corps photo by Lance Cpl. Diana Jimenez)

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Battlespace Repositioning

U.S. Marines with 1st Battalion, 12th Marines, Combat Logistics Battalion 3, and Marine Heavy Helicopter Squadron 463 conduct an external lift of a Joint Light Tactical Vehicle at Marine Corps Base Hawaii Area, Hawaii, Aug. 23, 2021. This training rehearsed the ability to quickly reposition fire support assets around the battlespace. (U.S. Marine Corps photo by SSgt. Olivia Knapp)

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12th Marine Regiment Change of Command

U.S. Marines with 12th Marines, 3d Marine Division, participate in a change of command ceremony on Camp Hansen, Okinawa, Japan, May 26, 2021. The ceremony represented the transfer of responsibility, authority, and accountability from Col. Michael J. Roach, the outgoing commanding officer of 12th Marines, to Col. Nick Sims, the incoming commanding officer of 12th Marines. (U.S. Marine Corps video by Lance Cpl. Kelly A. Snyder)

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12th Marine Regiment Leaders

Commanding Officer

Colonel Jonathan N. Sims

Colonel Jonathan Nicklas Sims earned his commission from the Officers Candidate Course after graduating from Texas University with a Bachelor Degree in Economics. Upon graduation from The Basic School in December 1998, he reported to Ft Sill, Oklahoma for instruction in the United States Army Field...

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Official Photo

Sergeant Major

Sergeant Major Wesley L. Misenhimer

Sergeant Major Misenhimer enlisted in the Marine Corps on 9 December 1996, and attended recruit training at MCRD San Diego, Ca. Upon completion of recruit training, he was directed to the Infantry Training Battalion, School of Infantry. He was assigned the MOS of 0311 Infantry Rifleman and...

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Official Photo

12th Marine Regiment

3d Marine Division

UNIT 36050

FPO AP 96385-6050

After Hours Duty Phone

DSN: 315-623-7355

COM: +81-98-969-7355

Uniform Victim Advocate (UVA)

DSN: 315-623-4647

COM: +81-98-969-4647

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S-1 (Administration)

Billet	Phone Number
S-1 Adjutant Officer	DSN: 315-623-4141 COM: +81-98-969-4141
S-1 Chief	DSN: 315-623-7355 COM: +81-98-969-7355
Career Planner	DSN: 315-623-2000 COM: +81-98-969-2000
Unit Voting Assistance Officer	DSN: 315-623-1140 COM: +81-98-969-1140

S-2 (Intelligence)

Billet	Phone Number
S-2 Officer	DSN: 315-623-7237 COM: +81-98-969-7237

S-3 (Operations)

Billet	Phone Number
S-3 Officer	DSN: 315-623-4520 COM: +81-98-969-4520
S-3 Chief	DSN: 315-623-4050 COM: +81-98-969-4050

S-4 (Logistics)

Billet	Phone Number
S-4 Officer	DSN: 315-623-7277 COM: +81-98-969-7277
S-4 Chief	DSN: 315-623-7216 COM: +81-98-969-7216
Supply	DSN: 315-623-7679 COM: +81-98-969-7679
Chaplain	DSN: 315-623-7398 COM: +81-98-969-7398
Medical	DSN: 315-623-8807 COM: +81-98-969-8807