The Chiefs of Staff Committee, chaired by the CDS, is the principal forum in which collective military advice is garnered and through which CDS discharges his responsibility for the preparation and conduct of military operations and the formulation of military strategy. CDS is also responsible for the provision of military advice to the Secretary of State and the Prime Minister. The single-Service Chiefs of Staff contribute to this role by providing advice on the employment of their respective service.
The Chiefs of Staff are also members of the Defence Management Board which directs and coordinates the delivery of core Defence outputs. As members of the Defence Management Board the Chiefs of Staff are individually accountable for the delivery of military capability generated by their Service; the fighting effectiveness and efficiency of the forces both now and in the future; and the morale of their personnel.