The theme of the final work are administrative organizations within the Croatian Ministry of Defence that are systematically displayed in its place the role and importance within the Ministry and in general in the Croatian defense system. The Ministry of Defence, as one of the central state administration bodies, the top management organization in the field of defense of the Republic of Croatia and the display of its organizational units, prominently displayed the difference in relation to the area of defense, which is organized by the Croatian Armed Forces. Depicting the administrative organization in the Ministry through their competence, it is clear that this is a very complex and diverse state system, which is competent to put down the responsible and demanding jobs. At the end of the utter views of the Department of Defense as a whole with a critical overview of the current situation in terms of staffing, financial possibilities and conditions for which it is intended - conditions and enforcement activities to ensure the sovereignty, independence and territorial integrity of the Republic of Croatia.