One of the most dynamic events of our time is the large extent of population movements within and across national boundaries. The causes of this movement of people include economic hardship due to various natural calamities such as earthquakes, droughts, famine and floods, as well as economic hardship due to lack of income. Political instabilities represent a central factor that is forcing the population movements at both national and international level.

In most of the cases, reality is beeing perceived as follows: if international security is enhanced, so is national security. However, the phenomenon of migration is perceived as being a greater challenge in the field of security towards failure states, rather than it might affect any welfare postindustrial states. Nowadays we are facing a more globalized security environment, fact that is actually providing other states with the possibility to create a better security for their own nations. In order to gain this security immunity, the states should be able to enforce and protect the migration policies within international security.

The relationship between migration and security became increasingly complex in the new millennium. As it follows, the focus of this theme is the correlation between migration´s consequences, both positive and negative, towards national security of host states. Furthermore, the topic of this paper is extending over ´what terrorism implies´. In order to reach a clear understanding, it has been analyzed the phenomenon of globalization and its forthcoming implications within both terrorism and migration. As a result of this transformation, terrorism has the power now to threat much more countries in the global area.

Nevertheless, the purpose of this thesis is to examine which factors have an impact on international security, within a continental similarity. The central focus reflects over the Euro-Mediterranean area and to certain extends over the United States. The considered factors are: migration, loss/gain of governmental control, the political reaction after the attack of 9/11, spread of democracy (e.g. globalization), and creating citizenship.