COMPSRON THREE

Captain Michael G. Mortensen
Commander
Maritime Prepositioning Ship Squadron Three

Captain Mortensen was raised in Murdock, Nebraska, and graduated from Elmwood-Murdock High School in 1996.  He attended the United States Naval Academy earning a B.S. degree in Systems Engineering and his commission as an Ensign in May, 2000. 
 
Upon completion of Division Officer Surface Warfare Officer School in Newport, Rhode Island, he reported to USS Patriot (MCM 7) in January 2001.  Aboard Patriot he served as Communications Officer, Combat Information Center Officer and Operations Officer completing two Seventh Fleet deployments and numerous international exercises. 
 
Following Patriot, Capt. Mortensen attended Nuclear Power School and Nuclear Power Training Unit, Balston Spa.  From October 2003 to January 2006, he served as RP05 Division Officer aboard USS John C. Stennis (CVN 74).  During this tour he completed a deployment to Seventh Fleet, a 12 month Dry-docking Planned Increment Availability at Puget Sound Naval Shipyard and was certified as a Nuclear Engineer Officer by Naval Reactors.
 
Capt. Mortensen’s next station was at the Naval Postgraduate School earning a Masters Degree in Systems Engineering and completing Phase I Joint Professional Military Education.  Following Naval Postgraduate School, Capt. Mortensen attended AEGIS Weapons System School in Dahlgren, Virginia and Department Head Surface Warfare Officer School in Newport, Rhode Island. 
 
After graduating from Department Head Surface Warfare Officers School he served on USS Gridley (DDG 101) from June 2008 to January 2010 as Operations Officer.  During this tour he completed two deployments to Fifth and Seventh Fleet and was temporarily assigned to Destroyer Squadron Seven to assist in Fifth Fleet exercise planning and operational plan development. 
 
Completing his tour aboard Gridley, he reported to USS Enterprise (CVN 65) from January, 2010 until January, 2012.  While aboard Enterprise he served as CHEM/RADCON Assistant completing a 27 month Dry-docking Planned Increment Availability and a Fifth and Sixth Fleet deployment.
 
Returning to shore duty Capt. Mortensen took charge as Commander Naval Air Forces, Pacific detachment Puget Sound Naval Shipyard Officer in Charge, serving as the Type Commander represent for three aircraft carrier dry dock availabilities. 
 
After serving ashore, Capt. Mortensen was assigned to USS Bunker Hill (CG 52) from June, 2014 until December, 2015 as Executive Officer.  While aboard Bunker Hill, he completed a Fifth Fleet deployment and screened for Commander Command Afloat.
 
Upon successful completion of his Executive Officer tour, Capt. Mortensen was assigned to Naval Surface & Mine Warfare Development Command staff working with John Hopkins to propose new technology for research and development for shipboard use.  In June of 2016 Capt. Mortensen was ordered to fill a gapped Executive Officer billet onboard Gridley. 
 
After filling Executive Officer billet for 7 months, Capt. Mortensen fleeted up to Commanding Officer on January 27^th 2017.  As Commanding Officer, he led the crew through an arduous 15 month drydocking and initial qualification phase of basic training in preparations for Gridley's NATO deployment.
 
Completing his Command tour aboard Gridley on July 20, 2018, CAPT Mortensen reported to USS Gerald R. Ford (CVN 78) as Assistant Reactor Officer in May, 2019 after completing training at Naval Reactors and a site visit to Naval Nuclear Laboratories in West Mifflin, PA.  Capt. Mortensen was selected for the rank of Captain in May of 2020.
 
Capt. Mortensen reported as Director, Joint Integrated Space Team – USSTRATCOM in September of 2021 and has since taken command as the Commodore for COMPSRON THREE in January of 2025.

 Capt. Mortensen’s personal awards include the Meritorious Service Medal (3), Navy Commendation Medal (4), the Navy and Marine Corps Achievement Medal (2), the Battle E (4) and other various unit and campaign awards.

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

Chief Warrant Officer 4 Sean Michael Ebersole assigned to COMPSRON THREE.

Warrant Ebersole is a native of San Antonio, TX. graduating from Robert E. Lee H.S. and holds a degree Business Management from Excelsior College.  Joining the Navy in 1998 as an OSSR/E-1, he attended boot camp in Great Lakes, IL. 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 Third and Second Class Petty Officer. While onboard he earned his enlisted Surface Warfare Specialist device as an E-3.  For his second tour he pre-commissioned the USS MASON (DDG-87) built in Bath, ME. and homeported in Norfolk, VA.  Onboard MASON he was assigned as the Lead Tactical Data Coordinator and stood Combat Information Watch Supervisor.  For his third tour he pre-commissioned the USS BAINBRIDGE (DDG-96) built in Bath, ME. and homeported in Norfolk, VA.  While onboard he advanced to First Class Petty Officer and qualified as Combat Information Center Watch Officer.  For his fourth sea tour he was assigned overseas to COMMANDER DESTROYER SQUADRON FIVE ZERO (COMDESRON 50) out of Manama, Bahrain.  There he was the N3 Leading Petty Officer and qualified as a Battle Watch Captain for CTF 55 and CTF 152 for independent deployers and coalition Forces.   Upon completion of that tour he 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 Maritime Regional Interface Control Officer (MRICO).   OS1 qualified as Surface and Air Tactical Action Officer and advanced to Chief Petty Officer. After commissioning Warrant’s first assignment was the AOPS/CICO onboard the USS FORREST SHERMAN (DDG-98) and prior to reporting he attend CSO B/L 7.2 pipeline in Dahlgren, VA.  Warrant qualified OOD U/W, AAWC, earned the Surface Warfare Officer qualification and promoted to CWO3.  While onboard Warrant also deployed to the Arctic Circle and earned his “Blue Nose”. Following that tour he then was assigned to the UNITED STATES AEGIS ASHORE MISSILE DEFEENSE SYSTEM Romania (USAAMDSRO) and prior to reporting he attended CSO B/L 9 with BMD pipeline in Dahlgren, VA. While assigned to AAMDSRO, Warrant was the Tactical Action Officer (TAO) for White Team 3 and became AAMDSRO’s first official Training Officer (TRAINO). During Warrants deployments he was the OPS and as a TAO, he and his team were assigned to the Ballistic Missile Defense of EUCOM.

 Ashore, OS1was assigned to Naval Security Forces for the USNA and NSA Annapolis.  While assigned there he was the LPO, the Command Career Counselor, and Auxiliary Security Forces Leader along with qualifying Force Protection Team Trainer Leader Ashore.  After CCSG-8 Chief took shore duty and became the C4I Course Supervisor and an instructor at Center for Surface Combat Systems (CSCS) Detachment Norfolk.  While as an instructor Chief 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.  Chief applied for the LDO/CWO Program in 2015 and was selected for commissioning in 2016.

Currently Warrant is assigned to COMMANDER MARITIME PREPOSTIONING SQUADRON THREE (COMPSRON THREE) out of Guam. He is assigned as the Operations Officer and Training Officer. He has been filling the Chief Staff Officer billet since June 2023 due to a manning gap and while there he promoted to CWO4. Warrant’s next duty station is the Pre-Commissioning Unit USS PATRICK GALLAGHER (DDG-127) homeported Norfolk, VA.

Warrant’s personal awards include Navy Commendation Medals (5 awards), Navy and Marine Corps Achievement Medals (9 awards), Military Outstanding Volunteer Service Medal (1 award), and various unit and campaign awards.