The Organisational structure of the MOD is shown below. The President is the Commander-in-Chief of the Republic of Sierra Leone Armed Forces, while the Minister of Defense and Director General of Defence exercises authority, direction, and control over the Ministry of Defence. The Oranisation of the Chief of Defence Staff (CDS), Civil and Military Advisers provide military and strategic defence policy within the MOD. The major elements of these forces are the Joint Force Command, comprising of the Land, Air and Maritime. Other Military Departments include Personnel and Training, Operations and Plans, Support and Logistics and Gender and Equal Opportunity. Each of these Departments have sub-military Divisions including for example, under Joint Force Command, the Brigades and Battalions & Units; Joint Logistics Units under Support and Logistics.

Civilian/Military MOD
To complement the development of the new MOD both civilian and military officers are now seen working together. The Chief of the Defence Staff (CDS) and his team of over with some military officers came over to work alongside the Director General and his civilian team. The effect of this new atmosphere is the beginning of civil-military co-operation that will provide a joint civilian-military MOD under the direction of the democratically appointed civilian political leaders. This result has been achieved with the help and advice of the team of international military training team.