Maintenance window scheduled to begin at February 14th 2200 est. until 0400 est. February 15th

(e.g. yourname@email.com)

Forgot Password?

    Defense Visual Information Distribution Service Logo

    UNITAS LXV

    UNITAS LXV

    UNITAS LXV    

    UNITAS, Latin for Unity, is the longest-running multinational maritime exercise in the world. A U.S.-sponsored joint exercise, UNITAS was conceived in 1959, with the first UNITAS (UNITAS I) taking place in 1960. UNITAS has occurred every year since then. When it started, U.S. and partner nation organizers decided to use Roman numerals to highlight the significance of a multinational maritime exercise designed to increase interoperability and strengthen partnerships among participating maritime forces. Exercise documents and host country branding still feature Roman numerals today, more than 60 years later.

    Highlights

    UNITAS LXV Begins in Valparaíso, Chile

    UNITAS LXV Begins in Valparaíso, Chile
    09.02.24 | CPO John Fischer | COMFOURTHFLT
    Navy and Marine forces arrived in Valparaiso in support of UNITAS LXV (65), the world’s longest-running multinational maritime exercise in the...
    UNITAS 2023: SOLIDAREX

    UNITAS 2023: SOLIDAREX
    07.09.23 | Sgt Juan Carpanzano | USMCF-S
    U.S. Navy Sailors from Combat Logistics Battalion 8, Combat Logistics Regiment 2, 2nd Marine Logistics Group, in support of Special Purpose Marine...

    127 Featured Videos

    U.S. Marines Disembark USS Arlington (LPD 24) During UNITAS 2025

    U.S. Marines Disembark USS Arlington (LPD...
    09.26.25 | PO2 Preston Cash | COMFOURTHFLT
    ATLANTIC OCEAN (Sept. 26, 2025) U.S. Marines aboard the San Antonio class amphibious transport dock USS Arlington (LPD 24) disembark Arlington for...
    U.S. Marines, Allied and Partner Nations Disembark USS Arlington (LPD 24) During UNITAS 2025

    U.S. Marines, Allied and Partner Nations...
    09.26.25 | PO2 Preston Cash | COMFOURTHFLT
    ATLANTIC OCEAN (Sept. 26, 2025) U.S., partner and allied marines aboard the San Antonio class amphibious transport dock USS Arlington (LPD 24)...
    Allied and Partnered Nations Embark on USS Arlington (LPD 24) During UNITAS 2025

    Allied and Partnered Nations Embark on...
    09.25.25 | PO2 Preston Cash | COMFOURTHFLT
    ATLANTIC OCEAN (Sept. 25, 2025) Allied and partnered nations embark on the San Antonio-class amphibious transport dock USS Arlington (LPD 24)...
    USS Arlington (LPD 24) Conducts SH-60 Seahawk Flight Operations During UNITAS 2025

    USS Arlington (LPD 24) Conducts SH-60...
    09.23.25 | PO2 Preston Cash | COMFOURTHFLT
    ATLANTIC OCEAN (Sept. 23, 2025) A U.S. Navy SH-60 Seahawk with Helicopter Sea Combat Squadron (HSC) 26 conducts flight operations from the San...
    More Videos

    3,018 Featured Images

    UNITAS 2025

    UNITAS 2025
    05.30.25 | PO1 Justin Yarborough | COMFOURTHFLT
    NORFOLK, Va. (Sept. 28, 2025) – Panamanian roll-on/roll-off multipurpose vessel SENAN Presidente Amador Guerrero (L-403) arrives at Naval...
    UNITAS 2025

    UNITAS 2025
    05.30.25 | PO1 Justin Yarborough | COMFOURTHFLT
    NORFOLK, Va. (Sept. 29, 2025) – The Mexican Newport-class tank landing ship ARM Rio Papaloapan (A411) arrives at Naval Station Norfolk for...
    UNITAS 2025

    UNITAS 2025
    05.30.25 | PO1 Justin Yarborough | COMFOURTHFLT
    NORFOLK, Va. (Sept. 29, 2025) – Royal Netherlands multi-purpose frigate HNLMS Van Amstel (F831) arrives at Naval Station Norfolk for UNITAS...
    UNITAS 2025

    UNITAS 2025
    05.30.25 | PO1 Justin Yarborough | COMFOURTHFLT
    NORFOLK, Va. (Sept. 28, 2025) – Spanish Galicia-class landing platform dock ship SPS Galicia (L 51) arrives at Naval Station Norfolk for UNITAS...
    More Images

    47 Featured Stories

    U.S. Fourth Fleet Holds UNITAS 2025 Final...
    06.27.25 | Courtesy Story | COMFOURTHFLT
    U.S. Naval Forces Southern Command/U.S. 4th Fleet hosted the UNITAS 2025 final planning conference (FPC) from June 23-27, building upon the momentum established during the main-planning conference held in April and initial planning conference held in February. The FPC brought together representatives from the U.S. and partner nations to finalize plans for UNITAS 2025, the 66th iteration of the world’s longest-running multinational maritime...
    U.S. Marine Corps and Navy aircraft support UNITAS LXV in Chile

    U.S. Marine Corps and Navy aircraft...
    09.10.24 | CPT Mark Andries | USMCF-S
    U.S. Marine Corps F/A-18C Hornets, KC-130J Hercules and U.S. Navy P-8 Poseidon aircraft supported Exercise UNITAS LXV in Santiago, Chile.
    UNITAS LXV Begins in Valparaíso, Chile

    UNITAS LXV Begins in Valparaíso, Chile
    09.02.24 | CPO John Fischer | COMFOURTHFLT
    Navy and Marine forces arrived in Valparaiso in support of UNITAS LXV (65), the world’s longest-running multinational maritime exercise in the...
    More News Stories

    1 Featured Audio

    Marine Minute

    Marine Minute
    08.29.19 | Cpl Nathan Hall | DMA-M
    I'm Corporal Nathan Hall with your Marine Minute More than 3,000 service members from 11 countries kicked off UNITAS LX, the 60th iteration of...