(analytic): this article evaluates the results of the Pisotón Program in the psychoemotional development of Colombian children between the ages of 3 and 7 in order to determine its possible contribution to the country's future peace-building process. To this end, a qualitative research was realized, using the Fábulas de Düss as a research instrument. These were applied with6,808 boys and girls, before and after participating in the program. The results show the emotional reorganization and reduction of defense mechanisms in all of the evaluated emotional dimensions.These results lead to the conclusion that Pisotón provides valid tools for the resolution of conflicts, both those that are common for this age as well as those that arise from contexts of violence. Key words: affective development, early childhood, emotional regulation, defensiveness, armed conflict, peace (Thesaurus of Psychological Index Terms).