International security is a constant threat to the pursuit of economic optimum. In the traditional economic analysis history, states are seen as agents in constant search for power, which leads to the emergence of conflicts of interests. The modern concept of security can be defined as the economic study of all the risks of short, medium and long term on the functioning of economic and social life. It can be divided into four sublevels: individual security, national security, international security and global security. The adoption of an enlarged approach to international security by integrating economic and environmental conditions highlights the expression of new collective priorities. Today, theories of security take into account the economic, human and social relationships, societal priorities and the balance of power in the international system. Human security implies a multi-disciplinary analysis, including human rights, state organisation, international relations and strategic studies. Security and sustainable development are deeply interconnected, which involves bearable production conditions for the environment in the long term,