8. Human rights in the postwar period

This chapter focuses on human rights, a perfect topic through which to study the interaction between law and politics in international relations. The topic of human rights offers a microcosm of the clashes and contradictions between realism and idealism, legal principles and political expediencies, state and non-state actors, and collective and individual rights, which characterize international order. The chapter defines human rights and outlines their international legal framework. The chapter then traces the postwar evolution of international human rights law (IHRL). It explains how, by the late twentieth century, the concept of human rights had captured the global imagination. It also explores the international political context in which the rise of human rights took place, including decolonization and the explosion in rights-based civil society activism in the 1970s. Finally, the chapter analyses the efficacy of IHRL in a world of sovereign states, before assessing the cultural relativist critique of human rights, which challenges their claim to universality, often from the perspective of postcolonial societies.

14. The politics of international law

This chapter draws together the key themes of this book, using contemporary debates over the nature and future of international order, and explores likely sources of continuity and change in the politics of international law. It begins by expanding on the concept of international order and, more specifically, the so-called liberal international order that has framed international politics in the postwar period. The chapter asks whether and why the liberal international order is in crisis and how it is likely to evolve. It then turns to the rise of non-Western powers, a phenomenon that many observers have argued is contributing to the crisis of the current order. The focus is on what the changing balance of material power may reveal about the present and future of international law. Finally, the chapter offers some tentative conclusions about the politics of international law two decades into the twenty-first century.

6. Global environmental governance and climate change

This chapter focuses on the intersection of law and politics in global environmental governance. A key characteristic of global environmental governance is its fragmentation. The regulatory landscape is populated by a variety of hard and soft law regimes, institutions, processes, and actors, which address particular environmental challenges, or address them in particular ways. Yet there are core principles that are common to many of these regimes, including the precautionary principle, the prevention principle, the principle of common but differentiated responsibilities, and the concept of sustainable development. The chapter then turns to an in-depth analysis of global climate change governance. It traces the evolution of climate change governance from the creation of the UN Framework Convention on Climate Change in 1994 to the present, focusing on the major legal-institutional milestones of the 1997 Kyoto Protocol and the 2015 Paris Agreement. Finally, the chapter returns to the problem of fragmentation, considering recent attempts to bring greater unity and coherence to global environmental governance.

4. International organizations, states, and global governance

This chapter evaluates global governance and how it relates to international law. It addresses the role of international organizations in processes of global governance, charting their rise from the nineteenth century onwards. Two international organizations exemplify semi-legalized governance beyond the state: the United Nations and the European Union. Sovereign states, of course, continue to play a central role in the institutions, processes, and mechanisms of global governance. The chapter then explores the extent to which a state’s power, influence, and legitimacy are affected by factors such as its domestic political arrangements and its adherence to the liberal, Western values that underpin the postwar order. It also assesses whether the proliferation of legalized and semi-legalized global governance regimes amounts to a constitutionalization of international relations.

10. International law and the use of force

This chapter explores the justness, legitimacy, and legality of war. While 1945 was a key turning point in the codification of jus ad bellum (i.e. international law on the use of force), that framework did not emerge in a vacuum. Rather, it was the product of historical political contingencies that meant that codification of the laws of war was contemporaneous, both geographically and temporally, with the solidification of the norms of sovereign nation-statehood and territorial integrity. The chapter focuses on the UN Charter regime and how it has shaped the politics of war since 1945. Importantly, the Charter establishes a general prohibition on the use of force in international relations. It also grants two exceptions to the prohibition: actions undertaken with Security Council authorization and actions taken in self-defence. Today, many of the most serious challenges to the Charter regime concern the definition and outer limits of the concept of self-defence. Another set of challenges to the Charter regime concerns the contested concept of ‘humanitarian intervention’. The chapter then looks at the development of the ‘Responsibility to Protect’ doctrine.

12. War and law in the twenty-first century

This chapter explicates the various ways in which contemporary warfare challenges post-1945 international law on the use of force and the conduct of war. It begins by exploring the rules governing the use of force against non-state actors. This is one of the most pressing issues of the war on terror, much of which has involved military operations against terrorist groups operating from the territory of states that cannot or will not suppress their activities. In particular, campaigns by the US and several other states against ISIS in Syria have seriously undermined the international law framework governing self-defence and the right of states to have their sovereignty and territorial integrity respected. The chapter then looks at another trademark policy of the war on terror: the use of targeted killings, often carried out by unmanned drones, to eliminate suspected terrorists. It also considers a new type of warfare altogether: the emerging phenomenon of cyber warfare, which, too, has implications for both jus ad bellum and jus in bello.

11. International humanitarian law

This chapter investigates whether and how the laws that govern armed conflict achieve their objective of minimizing the suffering of combatants and non-combatants alike. International humanitarian law (IHL) reflects the tensions of an international legal order that oscillates between the apologist tendency to reflect state practice and state self-interest and the utopian desire to reflect higher values of justice and human dignity. The chapter begins with a brief overview of the evolution of this body of law, the codification of which dates from the second half of the nineteenth century. It then turns to the question of terminology, analysing the political origins and legal implications of the relatively recent term ‘international humanitarian law’. The chapter focuses on two key questions. Firstly, who or what is a legitimate target during an armed conflict? Secondly, what are legitimate means of conducting armed conflict? The chapter also considers the status of nuclear weapons under international law, a topic that captures well both the possibilities and limits of IHL.

7. Global economic and trade governance

This chapter addresses the intersection of international law and international politics as it relates to global trade. To study global economic governance is to study international law, international relations, and international political economy (IPE) all at once. The chapter begins with a brief introduction to IPE, a discipline which seeks to understand the workings of the global economy in its political context. It examines the relationship between economic globalization and state sovereignty, before turning to the construction of the postwar global economic order, with a focus on the Bretton Woods institutions. The postwar global economic order has often been described as ‘liberal’ by virtue of its underlying assumptions and the ideological convictions of its framers. Importantly, the postwar liberal order was built by, and for, the developed countries of the Global North-a fact that has informed critiques emanating from the developing countries of the Global South. The chapter then assesses global trade governance, analysing the structure, powers, and role of the World Trade Organization.

13. International criminal justice

This chapter assesses whether international politics can be conducted in the courtroom. It begins with an analysis of the post-Second World War Nuremberg tribunal. While flawed in many ways, these proceedings marked a significant change in thinking about international crimes and individual responsibility. Though the onset of the Cold War prevented the translation of the Nuremberg legacy into more permanent, treaty-based international institutions, the ideas Nuremberg incubated were to have a lasting impact on international law. As in so many other areas of international law and international politics, the end of the Cold War was a watershed. The 1990s saw the revival of ad hoc international criminal tribunals, most notably the International Criminal Tribunal for Yugoslavia and the International Criminal Tribunal for Rwanda. The chapter then examines the International Criminal Court, which is, in many ways, the culmination of efforts to institutionalize international criminal justice.

5. Compliance and enforcement in international law

This chapter assesses why international legal obligations are (or are not) complied with, and how they are (or are not) enforced. It begins by drawing a distinction between laws and norms. The chapter then examines the main explanations for international law compliance put forward by both international law and international relations scholars. These may be broadly grouped into two categories: instrumentalist explanations and normative explanations. The chapter also discusses the concept of state responsibility—that is, the body of rules governing when and how states may be held liable for violations of international law. International law-enforcement is indelibly shaped by the condition of international anarchy. According to the concept of self-help, an injured state may, under certain circumstances, unilaterally take countermeasures against the guilty party. Such measures may include sanctions, though these may also be ordered by the UN Security Council as a collective security measure. The international legal system also increasingly makes use of judicial procedures that approximate those found within states. In this connection, the chapter considers the role of courts and tribunals in adjudicating disputes and promoting compliance with international law.