ABSTRACT
This chapter indicates a few reasons for waging war, and conversely, for factors that encourage States to refrain from resorting to force. Restricting trade in weapons also has a clear effect on the number of parties of war-waging capability. Another important cause of war is the failure of the international judicial system. The European Union has, under the Treaty of Lisbon which came into force in 2009, introduced a unified system of Common Foreign and Security Policy (CFSP). The general common market, the European Economic Community, later supplemented the other two Communities, the European Community for Coal and Steel (ECCS) and Euratom, by deep economic integration of the Member States. This customs union, later transformed into the European Union merging the three Communities, has external tariffs to third States and, to some extent, similar foreign policy to third parties. Worldwide attempts to promote, trade or a cultural exchange is likely to lessen the danger of war.
