The administrative structure of Ministry of Defense and Security consisted of a minister, deputy minister, secretary general, inspector general, three directorates-general and a number of functional centers and institutes. The minister, deputy minister, inspector general, and three directors general were retired senior military officers; the secretary general (who acted as deputy minister) and most functional center chiefs were, as is the case today, active-duty military officers, while employees and staff were personnel of the armed forces and of the civil service.