Seven NATO Allies participated in the NATO exercise Dynamic Mariner-20 (DYMR20) off the coast of France.

Exercise Dynamic Mariner tests NATO’s Response Force Maritime Component (NRF/M) and interoperability with NATO forces, enhancing flexibility and improving the ability to work together among Allied nations.

The exercise brought together 31 surface ships, one submarine, three maritime patrol aircraft and other air assets from Belgium, France, Greece, Italy, Netherlands, Spain, and the United States.


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DYMR20 is led by the NATO Maritime Command and involves Standing NATO Maritime Group Two (SNMG2) and Standing NATO Mine Countermeasures Group 2 (SNMCMG2),  two of NATO’s Standing Forces on active duty that contribute to the Alliance’s collective defence on a permanent basis.