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Combined Joint
Operations from the Sea


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Read the 2024 edition of our annual publication, Cutting the Bow Wave!

The Organization


Our framework supports transformation through concept development, experimentations, and the development of doctrine and standards. The Combined Joint Operations from the Sea Centre of Excellence (CJOS COE) was established in May 2006. Representing 13 nations, CJOS is the only Centre of Excellence in the United States, and one of 27 NATO accredited Centres worldwide, representing a collective wealth of international experience, expertise, and best practices.

Independent of the NATO Command structure, CJOS COE draws on the knowledge and capabilities of sponsoring nations, United States Fleet Forces, United States SECOND Fleet, and neighboring U.S. commands to promote “best practices” within the Alliance. CJOS COE also plays a key role in aiding NATO’s transformational goals, specifically those focused on maritime-based joint operations. We enjoy close cooperation with Allied Command Transformation (ACT), Allied Maritime Command (MARCOM), other NATO commands, maritime COEs, and national commands.

Comprised of 25 permanent staff, CJOS COE is highly flexible and responsive to its customers’ needs. The Centre cooperates, whenever possible, with industry and academia to ensure a comprehensive approach to the development of concept and doctrine.


Working closely with partners and stakeholders from international militaries, governments, non-governmental agencies, industry, and academic communities of interest, CJOS COE aims to be the Alliance’s source of expertise in the conduct of combined and joint operations in the maritime environment.


To support the Sponsoring Nations (SNs) and NATO in improving their ability to conduct Allied combined joint operations from the sea in order to counter current and emerging maritime global security challenges.

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