A number of commentators assert that the military response to the terrorist atrocities of 11 September 2001 - encompassing attacks on Afghanistan and Iraq, and commonly referred to as the 'war on terror' - has significantly impacted upon the international law regulating resort to armed force by states (jus ad bellum), loosening the constraints on self-defence. Some even suggest that the very future of the United Nations, in particular the Security Council and its collective security system, is at risk - at least in its current form. This book does not address the question of the future of the United Nations, an issue probably best left to scholars of international relations. Instead, it seeks to place the 'war on terror' within the context of international law, assessing how, or whether, it can be accommodated within the existing legal framework limiting the use of force. Through an examination of the lawfulness (or otherwise) of both Operation Enduring Freedom and Operation Iraqi...