Pacifism could be conceptualized as two aspects, in the first, it is the social and cultural response against war or armed conflicts, in another aspect it is that doctrine that seeks to favor and stimulate all the conditions for peace to be a permanent state and condition of human relations, both between people, and between States, nations and peoples. When we speak of pacifism we are referring, therefore, to the set of ideas and doctrines that favor peace as a political philosophy, as well as to that social movement (or individual position) that, throughout history but especially in contemporary times, has been generating forms of mobilization and thought in favor of peace and against war. Pacifism, moreover, has been based on a multiplicity of convictions and arguments, both religious, humanistic, philosophical, etc. And it is one of the most important ways to promote peacebuilding.