Origins of International Society
International society is the English School's core concept: the idea that states don't just coexist in anarchy but form a society with shared rules, norms, and institutions that govern their interactions. Understanding this concept is central to grasping how the English School positions itself between realism's power politics and liberalism's institutional optimism.
- The concept emerged in Europe during the 16th and 17th centuries as the medieval political order (with its overlapping authorities of popes, emperors, and feudal lords) gave way to a system of sovereign territorial states.
- The Peace of Westphalia (1648) is the conventional starting point. These treaties ended the Thirty Years' War and established two foundational principles: state sovereignty and non-interference in the internal affairs of other states.
- Hugo Grotius was a key intellectual influence. He argued that a natural law existed above states, governing their behavior toward one another, and that diplomacy and treaties could create binding obligations between sovereigns. His work helped establish the idea that interstate relations could be rule-governed rather than purely anarchic.
Key Principles of International Society
Sovereignty and non-intervention
Sovereignty means a state holds supreme authority within its own borders and is recognized as independent by other states. Non-intervention is the corresponding norm: states should not interfere in each other's internal affairs.
These two principles reinforce each other in theory but create tension in practice. When a state commits mass atrocities against its own population, for example, other states face a dilemma: respecting sovereignty means standing aside, but solidarist arguments (covered below) suggest intervention may be justified. Military action, economic sanctions, and even diplomatic pressure can all be seen as forms of interference that test the boundaries of non-intervention.
Diplomacy in international society
Diplomacy is the practice of managing relations between states through official representatives such as ambassadors and envoys. It includes negotiation, mediation, and the routine exchange of information.
Within the English School framework, diplomacy isn't just a tool; it's one of the core institutions that constitutes international society. Without ongoing diplomatic engagement, the shared norms and rules that hold international society together would erode. Diplomacy relies on reciprocity: states extend recognition and privileges to each other on a mutual basis, which creates a web of obligations that sustains the society of states.
Institutions in International Society

Role of international law
International law is the body of rules and principles that govern state behavior. It includes formal treaties and conventions as well as customary international law (practices that states follow out of a sense of legal obligation over time).
International law provides a framework for resolving disputes peacefully and coordinating action on shared interests. However, enforcement remains a persistent challenge. Unlike domestic law, there is no central authority that can compel states to comply. The International Court of Justice can issue rulings, but compliance depends largely on political will and social pressure within international society.
Importance of great powers
Great powers are states with significant military, economic, and political influence, such as the United States, China, and Russia. In the English School's view, great powers play a dual role:
- They act as managers of international order, using their influence to uphold norms, mediate disputes, and maintain stability. Hedley Bull identified great power management as one of the key institutions of international society.
- They can also undermine international society when they prioritize their own interests over established norms, as when great powers bypass the UN Security Council or violate the sovereignty of weaker states.
This dual role means great powers are both essential to international order and a recurring source of tension within it.
English School Perspective
Pluralist vs. solidarist debate
The English School's most important internal debate is between pluralists and solidarists. Both accept that international society exists, but they disagree about how thick or thin its shared norms should be.
- Pluralists (associated with Hedley Bull's earlier work) see international society as a relatively thin arrangement. States agree on basic procedural rules like sovereignty, non-intervention, and diplomatic immunity, but they do not share deep moral commitments. Pluralists argue this minimal consensus is what makes coexistence possible among states with very different cultures and political systems.
- Solidarists (associated with scholars like Nicholas Wheeler) argue that international society can and should be built on thicker shared values, especially human rights. They support humanitarian intervention when states fail to protect their own populations, and they push for international society to enforce standards of justice, not just order.
This debate maps directly onto real-world policy questions: Should the international community intervene to stop genocide even without the target state's consent? Pluralists say no (sovereignty prevails); solidarists say yes (human rights override sovereignty in extreme cases).

Challenges to International Society
Impact of globalization
Globalization refers to the increasing flow of goods, people, ideas, and capital across borders. It challenges the state-centric model of international society in several ways:
- It empowers non-state actors like multinational corporations and NGOs, giving them influence that sometimes rivals that of smaller states.
- It creates pressures for new forms of global governance that don't fit neatly into the Westphalian framework of sovereign equals.
- It generates new sources of conflict and inequality, as the benefits of integration are unevenly distributed.
For the English School, globalization raises a fundamental question: can an international society built around sovereign states adapt to a world where many of the most pressing problems (climate change, financial crises, pandemics) cross borders by nature?
Rise of non-state actors
Non-state actors include a wide range of entities: terrorist organizations, multinational corporations, NGOs, and transnational advocacy networks. They challenge international society because the traditional framework assumes states are the primary members.
- Some non-state actors act as partners to states, helping address problems like poverty or environmental degradation (e.g., the Red Cross, Médecins Sans Frontières).
- Others act as disruptors, challenging the state's monopoly on the use of force or undermining established norms (e.g., transnational terrorist networks).
Their growing influence raises questions about accountability and legitimacy. Non-state actors aren't signatories to treaties and don't have the same obligations as states, yet they increasingly shape international outcomes.
Future of International Society
Prospects for global governance
Global governance refers to the collective management of transnational problems through cooperation among states, international organizations, and non-state actors. It doesn't mean world government; it means coordinated rule-making and problem-solving at the international level.
Effective global governance requires states to accept some constraints on their sovereignty in pursuit of shared goals. Climate agreements, pandemic response frameworks, and international financial regulation all demand this kind of coordination. The main obstacles are familiar: unequal distribution of power, lack of enforcement mechanisms, disagreements over whose values should guide global rules, and resistance from states that see multilateral commitments as threats to their autonomy.
Potential for world society
World society is a concept the English School uses to describe a more integrated global community where shared values and identities extend beyond the state. While international society is a society of states, world society envisions connections among peoples across borders, grounded in shared commitments to human rights, democracy, and justice.
This remains more aspirational than descriptive. Achieving anything close to world society would require deep reform of global institutions, significant reductions in inequality, and a weakening of the national identities and interests that currently dominate international politics. Most English School scholars treat world society as a theoretical possibility rather than a near-term expectation, but it serves as a useful benchmark for evaluating how far international society has come and where it might go.