This paper describes the organizational structure of the Peruvian National Defense System. After discussing the role of the different entities that make up the Defense System, the budget assigned to each sector is analized. Special emphasis is placed on transparency of the defense sector budget and, in particular, of the budget of the intelligence service. The initial analysis of the defense sector and its budget indicate that the available information is scarce and almost useless given that it does not allow for analysis of the social worth of individual projects associated with that sector. Likewise, a large part of the budget is destined for actions oriented toward social spending programs. This causes a distorsion in the analysis of the rest of the government's social spending policy. It is difficult to measure how defense spending destined for social programs complements or substitutes other government actions. A common theme throughout the sector is the cult of secrecy and the lack of transparency, as well as difficulty in accessing data. The situation has recently improved with the publication of the Defense White Paper. However, in our opinion, there is still much to done.
