Wavell Room – The Royal Navy (RN) has the Maritime Reserve (MR), a 1* led Fighting Arm1 (FA), however, it could be argued that it is not taken seriously as a capability and is therefore not value for money. If the RN were to take the Maritime Reserve seriously, the MR would require a directed operational output, a ‘head mark’, a thought-out function, in conjunction with regular cadre of personnel who are taught the necessary knowledge and experience on how to employ it to enhance naval power. This article offers options for the output the MR should have in supporting the RN operationally.