Long-lasting peaces: overcoming the war-peace hiatus for a sustainable future is composed by seven chapters distributed in 3 parts destined to provoke reflections about a common theme: the existent obstacles and plausible solutions to achieve sustainable peaces. Each one of the articles discusses, in a critical perspective, important issues of the international agenda. Among the matters it can be found: the participation of belligerent actors as a means to an effective peace accord, the contradiction between structural violence and formal peace in South America, the promotion of women equity in peace processes, ethnic tensions and the achievement of peace through justice, new perspectives on food security and its impacts on refugees and IDPs, environmental commitments to lessen climate change, and mechanisms for socioeconomic human development.