The Combined Joint Operations from the Sea - Centre of Excellence (CJOS COE) is a multinational military unit located in Norfolk, Virginia, accredited by NATO. The current director is Vice Admiral Douglas G. Perry of the United States Navy and the current deputy director is Commodore Don Mackinnon of the British Royal Navy. It is independent from the NATO command structure, and is responsible for promoting best practices within the alliance and assisting with NATO's transformational goals focused on maritime-based joint operations.
CJOS COE is charged with developing and promoting maritime concepts and doctrine in order for NATO, Sponsoring Nations, Allies and other international partners and organizations to optimize the efficient delivery of Maritime Effect.
The CJOS COE was established on May 31, 2006, by the signing of two Memoranda of Understanding (MOU):