This paper considers the relationship between economic factors and national security. While considering a broad number of issue areas, the principal theme of the course is the way in which economic factors (as immigration) fundamentally influence the national security of the region, and the way in which those factors shape and constrain the strategies chosen to pursue that security. South-South migration flows outnumber the flows between South and North, and a series of developing countries have, over time, become net immigration countries. This phenomenon implies new challenges, in particular at the social level, for both the countries of origin and destination and requires a different approach in the way we think about the governance of migration flows. In this paper, we try to examine the immigration effect on the Persian Gulf region’s security. The results show that immigration decreases regional security.