For liberal economists, with the end of the Soviet Union, globalization is a step towards peace. However, war is still a threat for a humanity capable today of committing suicide, with nuclear and cybernetic weapons. The analyses of mercantilism do not disappear and the relations of force are still alive. The nature of "war" has changed. National security cannot be limited to the military, it also includes health, education, industrial risks or the protection of natural resources. The economy is both a cause of war and a means of armed conflict. Economic warfare uses weapons adapted to obtain a right or the exercise of a domination. As such, blockades, embargoes, boycotts or mercantilist-type power actions are techniques of war or conflict recognized by States. The international economic system is largely dominated and organized by the great powers and by multinational corporations. Moreover, the coercive power of states is mainly controlled by the largest multinationals. The current globalization is criticized, it is accused of developing inequalities and factors of conflicts, by giving power to the actors of international finance and to an unscrupulous commercial world. With the process of digitalization, a new type of colonialism in a dematerialized world deeply influenced by mercantilist behavior. There is a need for economic and social democratization of democracy.