Abstract: State defence is all efforts to defend the sovereignty of the state, the territorial integrity of the Unitary State of the Republic of Indonesia, and the safety of the entire nation from threats and disturbances to the integrity of the nation and state. In general terms, the state defence system is a universal defence system that involves all citizens, territories, and other national resources, and is prepared early by the government and is carried out in a total, integrated, directed, and continuous manner to uphold state sovereignty, territorial integrity, and safety of nation from all threats, and to achieve all that requires state defence management. State defence management is all activities at the strategic and policy level which includes planning, implementation, supervision, and control of the national Defence. One part of the national defence management system is the procurement.