The article consists of two parts. The first part describes the essence of the national security system and its structure. Using the Ishikawa diagram and the value chain, the authors presented the shortcomings of the national security system and a sequence of actions that can improve it. The second part of the article is devoted to material stocks and their role in the analyzed system. The survey research presented in this part of the article confirmed the importance of material stockpiles in ensuring national security. In addition, the research highlighted the need for government organizations to cooperate in the continuous replenishment of material stocks during a crisis.