The adoption of pre-emptive self-defence as a policy by the United States of America in its war against terrorism has revived the controversy over the concept of pre-emptive use of force in international politics. Some scholars argue that states are stretching the right of self-defence as pre-emptive, pre-ventive and anticipatory in accordance with their needs and interests and to justify their actions. For others, in the context of changing security threats such as terrorism and Weapons of Mass Destruction pre-emptive strikes are permissible. These efforts to redefine and re-interpret the right of self-defence and use of force for justifying state’s actions have challenged the role of international organisations that were principally desig...