Displaced persons are relevant actors in determining not only some of their life options but also some of the final results of violent conflict and policies addressing such conflict. Patterns of relocation and return are a key part of those results, especially ethnic-related conflicts. An introductory model to the micro foundations of return (and relocation) is presented here. This model is intended to provide tools for a better understanding of the way violence affects individuals, and more concretely of the way individuals react and cope with it. Particular emphasis is given here to the role played by security concerns (originating in the conflict) in the decision-making process.