This chapter presents an analysis of the role various social organizations have played in the achievement of peace in the war afflicted strategic region of Ariari, Meta in Colombia's eastern plains.Within this framework, our research aimed at identifying the elements which were crucial in the achievement of a peace agreement and the role various social organizations played through their various interactions.A qualitative and descriptive research methodology was used in order to get a contextualization of the territory and its history of violence.Subsequently, a study of how the concept of peace and its practices evolved through the use of statistical tools was conducted after gathering hands on information from interviews with victims and peace seeking social aid groups in the Ariari region.Finally, an analysis of the interactions between the peace seeking social groups involved, was conducted in order to gain an insight and understanding of their contribution to the sustainability of peace.