A series of crises in the Central African Republic has led to large-scale movements of people and goods in and out of the country. In Cameroon, some 30,000 refugees are currently settled in the eastern regions. The presence of these refugees raises the problem of access to land for the construction of shelters and the agricultural practices essential to their survival. With this in mind, how do migratory movements encourage the acquisition of land for the installation of refugee sites? This study attempts to answer this question, based on the hypothesis that migratory movements encourage the creation of new refugee camps, following a fairly strict process for selecting sites to house refugees. The aim of this study is to show how migratory movements are a factor in the creation of refugee sites. The theory of institutionalism, which is one of the key theories of our work, highlights the participation of international and national institutions in the smooth running of the international system.