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    Maritime Expeditionary Security Group One      

     

    Recent Images

    MSRON-3 Hosts Boy Scouts

    MSRON-3 Hosts Boy Scouts

    08.03.2024 | Courtesy Photo
    Sailors assigned to Maritime Security Squadron Three (MSRON-3) and Scouts from Boy Scouts of America troop 319 pose together for a group photo...

    Recent News Stories

    MSRON 11 Sailor Wins Naval Institute Enlisted Prize...

    07.09.2025 | Story by Lt. Erin McCullagh
    SAN DIEGO – Petty Officer First Class Marcus Lewis, assigned to Maritime Expeditionary Security Squadron (MSRON) 11 out of Seal Beach, Calif. was recently selected as the winner of the Naval Institute’s 2025 Enlisted Prize Essay Contest. His essay, “Bases are for Service Members,” highlights the importance of Sailor-friendly base and transportation infrastructure.

    Maritime Expeditionary Security Squadron Three...

    03.21.2025 | Story by Lt.j.g. Erin McCullagh
    IMPERIAL BEACH, Calif. – Cmdr. Alyssa Armstrong relieved Cmdr. Brandon Castle as commanding officer, Maritime Expeditionary Security Squadron (MSRON) 3, during a change-of-command ceremony at Naval Outlying Landing Field, Imperial Beach, Calif., March 21, 2025.
    MSRON-3 Hosts Boy Scouts

    MSRON-3 Hosts Boy Scouts

    08.03.2024 | Courtesy Story
    Maritime Security Squadron Three (MSRON-3) hosted Boy Scouts of America troop 319 for a command visit Aug. 3.
    MESG-1 Changes Command

    MESG-1 Changes Command

    02.03.2024 | Courtesy Story
    Maritime Expeditionary Security Group (MESG) 1 welcomed its newest leader during a change-of-command ceremony.