The author presents the constitutional aspects of the general duty of defense of the Fatherland in accordance with Polish law. The article is based on a comparative legal analysis of the provisions of the Constitution relating to the above-mentioned issue and, supplementarily, of the Act on the general obligation to defend the Republic of Poland. The work is theoretical and legal. At the beginning he analyzes the history and evolution of the concept of general duty of defense from the period of independence to the present day. The following part of the article presents the issue of the general duty of defense from the subjective and objective point of view. The author also presents normative acts which, apart from the constitution, regulate the issues of the general duty of defense. In addition, it indicates a number of entities that perform tasks in the field of defense, powers and competences.