In international affairs, legal arguments and political actions shape each other. Unlike in domestic affairs, there is no enforcement authority, and hence there is much debate over how international law affects politics. Many existing approaches do not help us to assess what implementation efforts tell us about a state’s commitment to international law. Some study the effect of law on state behaviour but have a too static understanding of law and state preferences. Others focus on the justificatory discourse that accompanies norm implementation but do not assess individual states’ commitment to contested norms. This chapter studies what a state’s effort to implement a norm tells us about its sense of obligation towards that norm. I propose there are three signposts of obligation in the words and actions that accompany a state’s norm implementation: consistency, publicity, and engagement with the international community. I show that depending on whether the behaviour and discourse of a state displays a strong or weak sense of obligation, we can characterise a state’s norm implementation as exposing weak or strong normative influence or discursive or behavioral norm avoidance. I illustrate these different degrees with cases that involve a variety of different norms and states.

This chapter reassesses how norm studies around the three moves have advanced and limited our understanding of ambiguous and conflictive relations between norms. It focuses on a specific type of norm relation, a norm collision. Conflicting or incompatible social expectations regarding the appropriate behaviour of actors in a given situation characterise a norm collision. Adherence to one norm may then result in the breach of another. First, the chapter engages with the neglect or limited perspective of norm collisions in the three moves of norm research. Second, it illustrates how choosing a specific norm concept – as connected to each of the three ‘moves’ in norm research – matters for theorising and identifying norm collisions in and between dense and complex institutional frameworks and as a result of contestation. Third, it discusses how crises nurture norm collisions by destabilising agreed-upon norm balances. It uses the most recent transnational and domestic policy responses to the outbreak of the COVID-19 pandemic as an example of how norms interact in practice and how a prioritisation of one norm may (negatively) affect another.

Systems approaches were an early part of the development of norms research as a subfield of International Relations but have been eclipsed by approaches which emphasise the role of actors, processes, and relationships. However, with new scholarship beginning to explore complex interactions of different norms and their relationship to the structure of the international system, the time to reassess existing systemic theories of international norms is now. This chapter traces the use of different types of systemic norms theory, including the norm life cycle, norms-as-structure, biological and ecological understandings of norm interaction and evolution, and complex systems theory (including regime complexes). By understanding international norms as emergent properties of a complex international system, we focus scholars’ attention on how the international system itself can affect the emergence, diffusion, contestation, and evolution of international norms and vice versa. The chapter finishes by employing a systems approach to understanding norm challenges regarding the rule of law.

The globalisation of advocacy and policy networks, including the dynamics of power that shape them, is integral to the emergence and evolution of norms. Yet the relationship between norms and networks remains undertheorised. How far and in what ways do changes in network structures affect the dynamism and diffusion of norms? Despite the cross-over empirically, and early scholarship on the role of advocacy networks in diffusing norms, the scholarship on international norms and that on transnational networks have subsequently developed on their own. This chapter explores the missing link between transnational networks and norm contestation by studying the spread and localisation of the ‘women, peace and security’ norm bundle. Networks do not merely serve to spread norms aka transmission belts. Rather, they are mechanisms of norm emergence, contestation, and transformation as well as diffusion. The transnational network spawned by UN Security Council resolution 1325 established a process to keep building the norm (bundle) and dialogue about it. Just as ‘norms’ are works in progress so too are the networks that support them. More attention needs to be focused on the changing nature of the agents and on the content of the evolving norms in discerning legitimacy or success of norms.

International organizations are established by international treaties that set out their powers and limits and the obligations toward international institutions even though few such institutions have the power to enforce their decisions. The politics of international organizations therefore arises in the dynamic between obligation, compliance, and enforcement.

Much of norm research that focuses on actors’ behaviour in relation to a norm refers either to behaviour in accordance with a norm (e.g., appropriateness or compliance) or to behaviour that constitutes critical engagement or even rejection with a norm (e.g., contestation or norm violation). What remains unchartered by these approaches is behaviour that not only is in accordance with a norm but also goes in some way beyond the expected behaviour. We suggest calling this ‘responsible behaviour’. Based on constructivist norms research and research on responsibility in world politics, we develop a conceptualisation that allows to better understand such behaviour. To substantiate our understanding of norm-related behaviour, we develop a typology of four ideal types: appropriate, responsible, inappropriate, and irresponsible behaviour. We then zoom into responsible behaviour and identify three configurations of responsible behaviour. First, over fulfilment of a norm by an actor; second, actors previously not addressed by the norm nevertheless decide to act accordingly to the norm; third, norm generative behaviour. Finally, we illustrate these three configurations with different examples from the realm of global politics, looking at diverse actors such as municipal governments and armed non-state actors, studying different norms and norm types in various situations.

This chapter describes the IMF and the World Bank, the two big international financial institutions created after World War II to stabilize the global economy. The two have similar goals and mechanisms but work with different instruments and in different contexts. Both pool the resources of their members and use the money it raises to make loans to governments with specific needs. The IMF lends to countries experiencing critical balance-of-payments problems. It makes short-term loans of foreign currencies that the borrowing country must use to finance the stabilization of its own currency or monetary system. As a precondition to the loan, the Fund generally requires that the borrower change its policies in ways that the Fund believes will enable monetary stability in future. The World Bank makes longer-term loans to pay for specific projects related to development or poverty reduction. Most Bank loans are tied to a particular project undertaken by the borrowing government. The Bank and the Fund are twinned institutions in the sense that they share a common origin and many structural features, but their practices and purposes are very different. As a result, they contrast each other in ways that are useful for exploring the mix of law and politics in global affairs.

The ICJ is the primary court for legal disputes among governments. It hears cases in which one country claims that another country has violated its obligations under international law. This chapter introduces the ICJ by examining its legal foundation in the Statute of the ICJ, and shows its powers and limits in practice by looking at the cases of Belgium v. Congo (on genocide) and Australia v. Japan (on rights and obligations for whale hunting under the International Convention for the Regulation of Whaling).

This chapter examines the law and politics of migration and refugees in global governance. Most governments are committed to an international refugee regime that requires them to welcome and support refugees, but also many governments wish to prevent refugees and other migrants from crossing borders into their countries. This contradiction provides fuel for legal and political disputes, with migrants bearing the human costs. The dynamics illustrate ways in which legal obligations and politics preferences weave around and through each other, sometimes in conflict, sometimes together, in surprising combinations.

The United Nations was designed to be the central world institution for peace and security, with the Security Council at its core. This chapter looks at the law and history of the UN’s role in international peace and security, along with the secondary role played by the General Assembly. The Security Council is at the intersection of law, politics, and enforcement in world politics. The chapter looks at the formal powers given to the Security Council in the UN Charter and then examines how the practical life of the Council since 1945 has been both more than and less than what the Charter says. Case studies of mass killings in Sudan, Rwanda, and Syria show the limits of Council power under the influence of the US, Russia, and other powerful governments.

What is an international organization? Intergovernmental agreements often create new institutions such as the United Nations which have independent status and some autonomy. This chapter considers how these organizations come into being and how they are studied by scholars of international politics and law. Depending on how one looks at things, an international organization can appear as an actor in world politics, a place where politics happens, or a resource used by others in political fights. These are the roles of actor, forum, and resource. I examine the main scholarly theories that are often applied to understand the function and effects of international organizations in international relations: realism, liberalism, constructivism, and marxism.