The purpose of this research is to critique the Principle of Collective Security and proffer possible solutions to help policy makers in the international arena devise means of calling off collective actions and improve the tenets of Collective Security. Gulf War 1 (1990-1991) is the major focus in critiquing the Principle of Collective Security. The research approach is non-experimental, qualitative, exploratory-descriptive and contextual. In this study, the sampling method was non-probable and purposive. Four research hypothesis guided the study in bringing to light the methods used by the united Nations to fight threats to peace, how effective these methods have been in fighting threats to peace and the possible solutions to the problems of threats to international peace and security. Hypothetical findings of this work revealed that the Principle of Collective Security has failed under both the auspices of the United Nations and The League of Nations before it. Consequently, this project recommends that for the true Principle of Collective Security to be established there has to be a unification of all states of the world under a "polity of liberal states" which would ensure that there is true cooperation among states of the world who would be considered citizens of the world under the proposed World Social Identification Number (WSIN) model, and as such feel obligated to protect the "liberal polity" whenever they are called upon to do so.
