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As part of the Navy's strategic sealift capability, Maritime Prepositioning Ships Squadron Three (MPSRON THREE) is responsible for the operation and administrative support to non-combatant ships of the Military Sealift Command Prepositioning Program in the Western Pacific Ocean. These time-chartered ships carry afloat prepositioned U,S, military cargo for the U.S. Marine Corps and the U.S. Army. The Squadron's mission is to provide sea transportation of vital equipment and supplies to a designated area of operations.

MPSRON THREE also has operational control of Combat Prepositioning Force or CPF and Logistics Prepositioning Ship. Combat Prepositioning Force ships provide quick-response delivery of U.S. Army equipment for ground troops. Logistics Prepositioning Ships do the same for the U.S. Air Force, the U.S. Navy and the Defense Logistics Agency. On a routine basis, MPSRON THREE assumes or relinquishes operational control of these ships to its sister MPSRON TWO squadron to ensure that the correct mix of ships are available around the world. At any time, one or all of MPSRON THREE's assigned CPF or Logistics Prepositioning Ships may be deployed to missions around the globe. 

Additionally, the Squadron can be tasked as the SORTIE Commander ahead of a major Typhoon in order to have all ships in the expected affected area to depart safely and to a safe haven to ride out the storm.  While as the SORTIE Commander the Squadron will work directly with all Commander, Task Force 73’s vessels throughout the AOR including Guam, Saipan, Japan, South Korea and Singapore.  The Squadron could also have its ships assigned to conduct Humanitarian efforts post a major disaster.  MPSRON THREE's command is headquartered onboard Naval Base Guam - Joint Region Marianas. Currently the USNS Watkins (T-AKR 315) is designated as the commands Flagship.



Captain Steven H. Wasson
Maritime Prepositioning Ships Squadron Three

Capt. Steven Wasson is a native of Oklahoma City, Okla. and commissioned from OCS in Pensacola, Fla., in 1999. He graduated from the University of South Dakota in 1996.  He has served aboard ships in the Pacific and Atlantic Fleets.
Afloat, Capt. Wasson was assigned to the Norfolk, Va. based Amphibious transport dock USS Shreveport (LPD-12) as the Auxiliary Officer. His next tour was as Combat Information Center Officer onboard USS Nashville (LPD-13) also homeported in Norfolk, Va. His first department head tour was as the Operations Officer onboard USS Robert G. Bradley (FFG-49) out of Mayport, Fla. Following Bradley, his second department head tour was as the Training Officer onboard USS Essex (LHD-2) homeported in Sasebo, Japan. He was selected for Commander Command and served as Executive Officer on USS Ashland (LSD-48) in Sasebo, JA before fleeting up to take command of USS Ashland (LSD-48).
Ashore, Capt. Wasson was assigned to Afloat Training Group Atlantic, in Norfolk, Va., where he earned a Master of Science in Management and Information Systems while attending Troy University. His next shore assignment was as the Flag Secretary for Commander, Amphibious Force U.S. Seventh Fleet, in Okinawa, Japan.  Following this tour, he reported to OPNAV in the N5 Strategy and Policy division and then at NAVSEA with Surface Ship Modernization.  Recent shore tours include instructor duty at SWOS in Newport, R.I., C5F as Future Operations Director in Bahrain. Wasson is currently assigned as Commodore to Maritime Prepositioning Squadron Three (COMPSRON THREE) in Guam. His next duty station will be Director of the Secretary of the Navy Council of Review Board Washington Navy Yard, Washington D.C.
Capt. Wasson's personal awards include the Legion of Merit (1), Meritorious Service Medal (3), Navy and Marine Corps Commendation Medal (5 awards), Navy and Marine Corps Achievement Medal (2 awards) and various unit and campaign awards.

Chief Staff Officer

Chief Warrant Officer 4 Sean M. Ebersole
Chief Staff Officer/ Operations Officer/ Training
Maritime Prepositioning Ships Squadron Three

Chief Warrant Officer 4 Sean Michael Ebersole is assigned to MPSRON THREE. Ebersole is a native of San Antonio, Texas, graduating from Robert E. Lee H.S. and holds a degree Business Management from Excelsior College.  He joined the Navy in 1998 as an OSSR/E-1, and attended boot camp in Great Lakes, Ill. He then completed OS “A” School in Dam Neck, Va.
Afloat, his first tour was onboard the USS Ramage (DDG-61) from 1998-2002, homeported in Norfolk, Va. There he advanced to Second Class Petty Officer, deployed twice and won the Battle “E” award three times.  In 2002, OS2 pre-commissioned the USS Mason (DDG-87) from 2002-2004.  Onboard Mason he was assigned as the Lead Tactical Data Coordinator along with winning another Battle “E” award.  In 2004 OS2 pre-commissioned the USS Bainbridge (DDG-96) from 2004-2007.  While onboard he qualified as a CICWO and advanced to First Class Petty Officer.  From 2010-2011 OS1 was assigned to Commander Destroyer Squadron Five Zero (COMDESRON 50) out of Manama, Bahrain.  There he was the N3 LPO and qualified as a Battle Watch Captain for CTF 55 and CTF 152 for independent deployers and coalition Forces.   From 2011-2014 OS1 was assigned to Commander Carrier Strike Group Eight (CCSG-8) embarked onboard the USS Eisenhower (CVN-69).  At CCSG-8 he was the LPO and the CSG-8 MRICO.   OS1 completed two deployments and advanced to Chief Petty Officer.  In 2016 CWO2 attended B/L 7 CSO pipeline in Dahlgren, VA., his first Warrant Officer assignment was the AOPS/CICO onboard the USS Forrest Sherman (DDG-98).  CWO2 qualified OOD U/W, AAWC, earned the Surface Warfare Officer qualification and promoted to CWO3.  CWO3 deployed twice and earned his Blue Nose sailing in the ARCTIC CIRCLE along with winning the Battle “E” award.   In 2019 he was assigned to the U.S. Aegis Ashore Missile Defense System Romania (USAAMDSRO) and prior to reporting he attended CSO B/L 9 with BMD pipeline in Dahlgren, Va. While assigned to AAMDSRO, CWO3 was the TAO for White Team 3 and became AAMDSRO’s first official Training Officer (TRAINO). During CWO3’s two deployments he was the OPS and as a TAO, he and his team were assigned to the Ballistic Missile Defense of EUCOM. In 2023 he was then assigned to Commander Maritime Prepositioning Squadron Three (COMPSRON THREE) out of Guam. There he is the OPS, Training Officer and is currently filling the Chief Staff Officer roll due to a manning gap. There he was also promoted to CWO4 in 2023.
Ashore, in 2007-2010 OS1 he was assigned to Naval Security Forces for the USNA and NSA Annapolis.  While assigned there he was the LPO, the CCC, and Auxiliary Security Forces Leader along with qualifying FPTT Leader Ashore.  Then is 2014 OSC took shore duty and became the C4I Course Supervisor and an instructor at CSCS Detachment Norfolk.  While as an instructor OSC taught the waterfront link casualty controls and exercises.  Additionally certifying ships in AWT Phase II/III in Norfolk and FDNF ships out of Rota, Spain.  In 2015 OSC was selected for commissioning to Chief Warrant Officer through the LDO/CWO Commissioning Program.  
CWO4 Ebersole’s personal awards include Navy Commendation Medals (3 awards), Navy and Marine Corps Achievement Medals (9 awards), Military Outstanding Volunteer Service Medal (1 award). Other awards include Sea Service Ribbons (10), Overseas Service Ribbons (2), Battle “E” awards (5), Kosovo Campaign and Kosovo NATO medal, Korean Service Defense Medal, GWOT and Expeditionary Medal, expert in Pistol/Rifle and several unit citation awards.

Contact Us

Command Duty      Comm: (671) 339-7563
Officer                   Email

Chief Staff             Comm: (671) 339-7561

Senior Enlisted       Comm: (671) 339-7563

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