To preserve peace after World War I the League of Nations was created in 1920 and the principle of collective security was adopted. . It entails that all members have to accept and obey the rules of international law which forbid any process of employing violent behavior within the group (Stromberg, 2008, p. 1). Three important agreements have been made in this context, those are, The RIO in 1947, NATO in 1949 and WARSAW in 1955, pledging each member to avoid belligerence against each other. (Ishay, 2004, p. 225)
The concept of collective security seems to be of major importance in the study of international relations and worldwide politics but the application of the concept in practice has achieved little success. It now suffers a mottled status in the context of international relations. Its significant collapse as exposed by the League of Nations is the focal representation left to the world since 1930. The eternal squabbling and ineffective pretentiousness of the United Nations throughout the Cold War period additionally disgraced the idea of collective security. (Kaloudis, 1998, P.1)
As stated by James E. Goodby, in terms of international relations and politics, what seem to work in the past were collective defense alliances like NATO assurance to protect each associate state from exterior hostility.