The article presents the basic conditions of state security and the assumptions resulting from defense pragmatics and the participation of the Polish army in individual contingents and foreign missions. By showing the different types and importance of individual foreign missions, their legal conditions were presented and the costs and benefits resulting from it were assessed. Such a research assumption is important in terms of the activities that have an impact on the functioning of the complex national security system. One of such factors is also the possibility of improving the level of training of soldiers in war, training and stabilization conditions, highly appreciated by the cooperating NATO countries. The state security policy conducted in this way is conducive to the development of long-term economic benefits and strengthens international ties in key matters relating to national interests at the military and economic level.