Actors in the International System: A Comparative Analysis of State and Non-State Influence

Adediran Babajide, President/CEO
Carlsron Initiative for Peace and Human Rights (CIPEHR)

 

 

Scope: International system, state actors, non-state actors, sovereignty, globalization, power, individuals in IR

Abstract

For centuries, the international system was conceptualized as a state-centric arena in which sovereign states acted as the principal and often exclusive actors. Rooted in the Westphalian tradition, international relations theory historically emphasized the role of states in pursuing power, security, and national interest. However, globalization, technological advancements, and transnational challenges have expanded the international stage to include a wide range of non-state actors—international organizations, non-governmental organizations (NGOs), multinational corporations (MNCs), violent groups, and even influential individuals—whose influence rivals, supplements, or constrains that of states. This article undertakes a comparative analysis of state and non-state actors in the international system. It examines their sources of power, legitimacy, and scope of influence, drawing on theoretical perspectives from realism, liberalism, and constructivism, and illustrates their interaction through case studies such as U.S.–China rivalry, climate governance, humanitarian intervention, and global counterterrorism. The analysis finds that while states remain central actors, non-state entities, including individuals, have become indispensable to understanding contemporary global politics, creating a pluralist international order in which power is dispersed and interdependence is unavoidable.

 

1. Introduction

The international system has traditionally been understood through the lens of states as the dominant actors. Rooted in the Treaty of Westphalia (1648), the principle of sovereignty placed states at the center of world politics, with authority over their domestic affairs and recognition in the international arena (Krasner, 1999). Classical theories of international relations, particularly realism, reinforced this view, portraying states as rational actors seeking survival in an anarchic system (Waltz, 1979).

Yet, in the 21st century, the state-centric model is increasingly questioned. The rise of globalization has facilitated the expansion of cross-border flows of information, goods, and people, creating fertile ground for the emergence of influential non-state actors. Multinational corporations shape global trade and technological innovation; NGOs advocate for human rights and environmental protection; terrorist organizations challenge security architectures; and intergovernmental organizations (IGOs) mediate disputes and set norms. Beyond these, individuals with moral authority, economic resources, or social mobilizing power—such as the Pope, Malala Yousafzai, or Elon Musk—are also shaping global politics.

This article investigates the comparative influence of state and non-state actors in the international system. It asks: To what extent have non-state actors reshaped international relations, and do they challenge the centrality of states? The paper proceeds in six sections: a theoretical framework, an overview of state and non-state actors (including individuals), comparative analysis, discussion of challenges and interdependence, implications for international relations, and conclusion.

 

2. Theoretical Framework

International relations theory provides multiple lenses for examining actors in the international system.

Realism emphasizes the centrality of states. It argues that in an anarchic system lacking a world government, states prioritize security and power (Morgenthau, 1948; Waltz, 1979). Realists view non-state actors as secondary, often instruments of state power rather than independent entities.

Liberalism offers a contrasting perspective, highlighting cooperation and institutions. Liberals argue that international organizations, regimes, and non-state actors reduce anarchy’s impact by facilitating cooperation, creating interdependence, and advancing collective goods (Keohane & Nye, 1977).

Constructivism focuses on the role of norms, ideas, and identities in shaping actors’ behavior. From this perspective, both state and non-state actors construct meaning in international politics, influencing outcomes through discourse and socialization (Wendt, 1999). NGOs, epistemic communities, and even individuals can shape state behavior by framing issues like human rights and climate change.

Together, these theories illuminate the pluralistic nature of today’s international system, where state power is primary but increasingly intertwined with transnational forces.

 

3. Actors in the International System

3.1 States as Primary Actors

States remain the cornerstone of international relations. Their defining characteristics—sovereignty, defined territory, population, and government—grant them legal authority unmatched by non-state actors. States exercise hard power through military capability and economic leverage, as seen in U.S. global military presence or China’s Belt and Road Initiative. They also employ soft power through culture, diplomacy, and values, exemplified by France’s promotion of Francophonie or South Korea’s export of K-pop and media.

Case study: The U.S.–China rivalry illustrates the continued primacy of states. Their competition spans military modernization, economic influence, technological supremacy (e.g., 5G networks, artificial intelligence), and ideological narratives of democracy versus authoritarian capitalism (Allison, 2017). Despite the role of corporations and IGOs, the strategic competition between states remains decisive in shaping global order.

3.2 Non-State Actors

The influence of non-state actors manifests across multiple domains.

• International Organizations (IOs): Entities like the United Nations (UN), World Trade Organization (WTO), and African Union (AU) coordinate multilateral responses to conflict, trade, and development. For example, UN peacekeeping missions operate in fragile states, sometimes shaping outcomes where state authority is absent.
• Non-Governmental Organizations (NGOs): Groups like Amnesty International and Greenpeace mobilize resources, set agendas, and hold states accountable. Their advocacy has advanced international treaties such as the Ottawa Treaty banning landmines.
• Multinational Corporations (MNCs): With revenues exceeding the GDP of some states, MNCs like Apple, Amazon, and Shell influence global economics and politics. They lobby governments, shape global supply chains, and affect regulatory regimes.
• Violent Non-State Actors: Groups such as Al-Qaeda, ISIS, and Boko Haram disrupt international security, forcing states into counterterrorism coalitions and altering security policies worldwide.
• Epistemic Communities and Transnational Movements: Networks of experts and activists influence policymaking by shaping knowledge and norms, particularly in climate governance (Haas, 1992). For instance, the Intergovernmental Panel on Climate Change (IPCC) has significantly shaped global climate discourse.
• Individuals: Prominent figures increasingly influence international politics. The Pope, as leader of the Catholic Church, wields soft power that shapes global debates on peace, migration, and climate. The Dalai Lama influences international human rights discussions despite lacking territorial authority. Greta Thunberg mobilizes youth movements to pressure states on climate change, while Malala Yousafzai’s advocacy for girls’ education influences global development policy. Business leaders like Elon Musk shape debates on space exploration, renewable energy, and digital infrastructure. These individuals, though lacking sovereignty, operate as non-state actors with transnational reach.

 

4. Comparative Analysis

The comparative influence of state and non-state actors can be analyzed across four criteria: power, legitimacy, scope of influence, and accountability.

Power: States hold military and economic resources unmatched by most non-state actors. Yet, corporations like ExxonMobil or Google rival small and medium-sized states in economic clout, while terrorist groups can destabilize entire regions. Individuals, too, wield power through moral authority or innovation. The Pope’s pronouncements shape global debates, while Elon Musk’s ventures affect energy and space policy.

Legitimacy: States derive legitimacy from sovereignty and international recognition. Non-state actors gain legitimacy from moral authority (NGOs, individuals), economic success (MNCs), or normative consensus (IOs). Figures like Malala or the Dalai Lama enjoy legitimacy that compels states to engage with their causes, even without formal power.

Scope of Influence: States influence primarily within defined borders and through foreign policy abroad. Non-state actors transcend borders, often operating globally. Climate movements such as Fridays for Future mobilize millions across continents, pressuring governments at global summits. Individual actors also transcend borders: the Pope speaks to Catholics worldwide, not just in Vatican City.

Accountability: States are accountable (at least nominally) to citizens through elections and international law. Non-state actors face weaker accountability mechanisms—NGOs answer to donors, MNCs to shareholders, and individuals primarily to public opinion and media scrutiny.

Case comparisons:

• Humanitarian intervention: In crises like Darfur, NGOs and religious leaders pressured states into action.
• Climate governance: COP summits show a mix—states negotiate agreements, but individuals like Greta Thunberg shift public narratives.
• Conflict mediation: The Pope has acted as a mediator, such as in the U.S.–Cuba rapprochement, complementing state diplomacy.

5. Challenges and Interdependence

The interaction of state and non-state actors is characterized by both cooperation and conflict.

• Security: States lead counterterrorism, but success often depends on cooperation with non-state actors such as local militias, NGOs, or religious leaders.
• Globalization: Economic interdependence ties states and corporations together, making regulation and governance increasingly complex. The 2008 financial crisis demonstrated how private financial institutions could destabilize the global economy, forcing states into collective action.
• Technology: Social media platforms and influential individuals shape political discourse, sometimes beyond state control.
• Public opinion and legitimacy: NGOs and charismatic individuals amplify global civil society voices, making it harder for states to act unilaterally without reputational costs.

 

6. Implications for International Relations

The rise of non-state actors does not eliminate the primacy of states but transforms their role. States remain the ultimate holders of coercive power, yet they increasingly share governance with a complex web of actors. The international system today is better described as a pluralist order, where sovereignty is redefined by interdependence and where states can neither solve nor ignore global problems alone.

The implications are significant:

• Theoretical: Realism’s state-centrism is challenged, while liberalism and constructivism gain relevance.
• Policy: States must engage with non-state actors, including individuals, to address climate change, cyber security, migration, and pandemics.
• Normative: Global governance is increasingly shaped by a blend of legal authority, moral persuasion, and market power.

 

7. Conclusion

This article has examined the comparative influence of state and non-state actors in the international system, with special attention to the role of individuals. It has shown that while states remain central due to sovereignty, military power, and institutional authority, non-state actors exert significant and growing influence through economic, normative, and transnational means. Individuals such as the Pope, Greta Thunberg, and Malala Yousafzai demonstrate how personal leadership and moral authority can influence global politics, complementing or constraining state action. The U.S.–China rivalry demonstrates state primacy, while climate governance, humanitarian interventions, and religious diplomacy highlight non-state agency.

The future of the international system will not be defined by the displacement of states but by the increasing complexity of their interactions with non-state actors. A pluralist order is emerging, in which global challenges demand shared responsibility across states, organizations, corporations, movements, and influential individuals.

 

References

Allison, G. (2017). Destined for war: Can America and China escape Thucydides’s trap? Houghton Mifflin Harcourt.

Haas, P. M. (1992). Introduction: Epistemic communities and international policy coordination. International Organization, 46(1), 1–35.

Keohane, R. O., & Nye, J. S. (1977). Power and interdependence: World politics in transition. Little, Brown.

Krasner, S. D. (1999). Sovereignty: Organized hypocrisy. Princeton University Press.

Morgenthau, H. J. (1948). Politics among nations: The struggle for power and peace. Knopf.

Waltz, K. N. (1979). Theory of international politics. Addison-Wesley.

Wendt, A. (1999). Social theory of international politics. Cambridge University Press.