The article presents the types of objects and devices that are particularly important for the country's defense and economic interest, as well as for other important state interests. The types of security services for military facilities and the types of security services performing tasks in the Polish Armed Forces are described. The ways of performing guard duty by full-time security sub-units, civil guard units and specialized armed protective formations were presented. The problems in the protection of military complexes were also shown. Particular attention was paid to security tasks carried out for the benefit of the Armed Forces by private entrepreneurs. In the final part, directions of action were proposed that would allow for increasing the level of protection of military institutions and units.