The subject of the following article are the basic concepts present in Carl Schmitt’s political theory: concepts of enemy and war. The concept of the enemy is defined in the first part of the work in the context of coexistence with the concept of friend as the fundamental opposite of the theory of politics. The next part of the essay defines the concept of war, and then describes the right to war (ius belli) as a special right of the state. The last part of this paper deals with the particular concept of enemy, the internal enemy.