The main objective of this post-doctoral research is to conduct a comparative analysis of refugee shelters in Brazil, Colombia, Germany and Poland, aiming at identifying the forms of interpersonal conflicts, their generating causes and the existence of coping mechanisms. It also seeks to understand the construction of peaceful relations in the shelters and its influence on the conviviality within these spaces. In this work, "Refugee" refers to all individuals housed in shelters regardless of their legal status. The research employs a qualitative-quantitative ethnographic methodology with extensive fieldwork encompassing semi-structured interview, survey and photography in refugee shelters in Brazil, Colombia, Germany and Poland. Through the comparative analysis between shelters in these four countries the research attempts to discover similarities and differences in how refugees experience conflicts and peace, as well as to identify good practices that could contribute to more peaceful shelters in other parts of the world. In addition, it seeks to provide evidence-based policy recommendations on the employment of refugee shelters as a humanitarian response.