The course aims to introduce students to the main schools of thought in the areas of peace, violence and security, from positivist proposals to the most current post-positivist proposals and from realistic and liberal schools of thought to critical currents. It also aims to understand what are the central concepts of these thinkers and how they have been following the theoretical developments in these areas of study. It is intended with this curricular unit that the student acquires fundamental knowledge related to theoretical and conceptual assumptions, authors, reference works and debates, develops argumentative skills, and acquires critical analysis skills, both in theoretical terms and in terms of analysis of the international reality and the different readings that these different perspectives allow in the analysis and understanding of it. The organization of seminars thus presupposes the active participation of students. In addition to the theoretical framework of the themes, emphasis is placed on content analysis and context debate centered on scientific texts and relevant case studies in different areas.