In simple terms
A friendly intro before the formal notes — no formulas yet.
The World's Stage: Who Are the Players?
Global politics isn't just a drama performed by countries; it's a complex production with a diverse cast. Understanding the different types of actors—states, IGOs, and NGOs—is crucial to comprehending the plot of international relations.
Imagine your school is a 'state' with the headteacher holding ultimate authority (sovereignty). An 'IGO' is like a council of student representatives from all schools in the city, created by the schools to work on common issues like a city-wide sports day. An 'NGO' is like the school's environmental club—a self-organised group of students passionate about a specific cause, trying to influence the school's policy on recycling.
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Identify the Actor: First, categorise the player. Is it a state (like Brazil), an IGO (like the United Nations), or an NGO (like Doctors Without Borders)?
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Analyse its Power: Determine the source of its influence. States often wield hard power (military, economic), while IGOs derive power from their member states' collective will, and NGOs often use soft power like moral authority and public campaigns.
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Determine its Aims & Role: What is the actor's objective in a specific situation? A state might seek economic advantage, an IGO might aim to mediate a conflict, and an NGO might focus on delivering humanitarian aid.
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Evaluate its Impact & Limitations: Assess the actor's effectiveness. How has it influenced the outcome? What constraints does it face, such as a state's sovereignty, lack of funding for an NGO, or a veto in an IGO?
Full topic notes
Formal explanation with the rigour you need for the exam.
The State: The Bedrock of Global Politics
The state remains the primary actor in global politics. Defined by the 1933 Montevideo Convention, a state possesses a permanent population, a defined territory, a government, and the capacity to engage with other states. The cornerstone of statehood is sovereignty—the principle of supreme authority within its territory. This grants the state the monopoly on the legitimate use of force and makes it, in theory, the ultimate decision-maker for its people and land. Despite challenges from globalisation, the power of states—especially major powers like the USA and China—to wage war, sign treaties, and control economies ensures their central role.
Core Features: Territory, Population, Government, Sovereignty.
Primary Source of Power: Hard power (military and economic might), control over resources, and legal authority (sovereignty).
Role: To protect national interests, provide security and public goods for citizens, and engage in diplomacy and international relations.
Limitation: In an interconnected world, states are increasingly challenged by transnational issues like climate change, pandemics, and terrorism that no single state can solve alone.
Intergovernmental Organisations (IGOs): Platforms for Cooperation or Puppets of States?
IGOs are created by states, through treaties, to address issues that cross borders. They provide a forum for cooperation, dispute resolution, and the creation of international law and norms. The United Nations (UN) is the most prominent example, with a broad mandate covering peace and security, development, and human rights. Other IGOs are more specialised, such as the World Trade Organization (WTO) for trade or regional like the African Union (AU). The key debate surrounding IGOs is the extent of their independent power. Are they merely instruments for their most powerful member states, or can they genuinely constrain state behaviour and promote a global common good?
Non-Governmental Organisations (NGOs): Agents of Change
NGOs are private, non-profit organisations that operate independently of governments to address social or political issues. Their diversity is immense, ranging from large, transnational advocacy networks like Human Rights Watch to on-the-ground service providers like Médecins Sans Frontières (MSF). Lacking the hard power of states, NGOs rely on other sources of influence. These include their moral authority, expertise, ability to mobilise public opinion ('naming and shaming'), and their direct connection to people affected by global issues. They play a crucial role in holding states and IGOs accountable.
In your essays, avoid treating actors as monolithic. Instead of 'the UN', specify 'the UN Security Council' or 'UNICEF'. Instead of 'NGOs', specify 'Amnesty International' or a local grassroots organisation. The more specific your examples, the more you can demonstrate a nuanced understanding of the complexities of global politics, which is key to reaching the higher markbands.
Worked examples
See the formulas applied — reveal one step at a time, like the exam.
With reference to one IGO, evaluate the claim that IGOs are ineffective in resolving armed conflict.
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This question requires an evaluation of IGO effectiveness in a specific context. A balanced answer will show both successes/potential and failures/limitations.
Compare and contrast the power of a state and an NGO in influencing the global response to climate change.
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This question requires a comparative analysis of two different actor types on a single issue, focusing on the concept of 'power'.
How it all connects
The big idea sits in the middle — tap a linked idea to explore the link.
Tap a linked idea to see how it connects back to the main topic — that connection is what examiners reward.
Glossary
Key terms for this topic — skim now; the Check step will test them.
- Sovereignty
The principle that a state has full authority over its own territory and is independent from external control. Westphalian sovereignty (1648) is the traditional model.
- Intergovernmental Organisation (IGO)
An organisation composed primarily of sovereign states. Created by treaty to handle common interests. Examples: United Nations (UN), World Trade Organization (WTO), European Union (EU).
- Non-Governmental Organisation (NGO)
A non-profit, voluntary citizens' group which is organised on a local, national or international level. They are independent of governments. Examples: Amnesty International, Greenpeace.
- Hard Power
The use of military and economic means to influence the behaviour or interests of other political bodies. Often associated with states.
- Soft Power
The ability to attract and co-opt rather than coerce. It involves shaping the preferences of others through appeal and attraction. Often used by NGOs and some IGOs.
- Supranationalism
A process where states transfer a degree of sovereignty to a higher, international authority. Decisions made by this authority can be binding on member states. The EU is the primary example.
- Intergovernmentalism
A model of cooperation where states remain the primary actors and decisions are made by consensus or unanimity. National interests are prioritised over collective ones. The UN Security Council veto is a key example.
- The United Nations (UN)
The world's largest and most significant IGO. It is not a world government; it's an organisation of sovereign states. Its effectiveness is often limited by the political will of its members, especially the P5 in the Security Council.
- Realist view of actors
Realism posits that states are the only truly significant actors in global politics. They see IGOs and NGOs as having little independent power, viewing them as tools of powerful states.
- Liberal view of actors
Liberalism acknowledges the importance of states but also sees IGOs and NGOs as significant, independent actors that can foster cooperation, build norms, and challenge state power.
Name it
Read the meaning, then pick which of this lesson’s terms it describes. Miss one and you see what your choice really means.
The principle that a state has full authority over its own territory and is independent from external control. Westphalian(1648) is the traditional model.
Quick check
Write your answer first, then compare it with the model one — the gap is what you would have lost.
Teach it back
If you can explain it simply, you own it — gaps here are marks you’d lose.
Teach it back
Explain this topic as if teaching a friend. We name the gaps an examiner would still dock.
Revision flashcards
Guess first, then flip — retrieval beats re-reading.
Key takeaways
Review these before you close the topic — retrieval beats re-reading.
Core Features: Territory, Population, Government, Sovereignty.
Primary Source of Power: Hard power (military and economic might), control over resources, and legal authority (sovereignty).
Role: To protect national interests, provide security and public goods for citizens, and engage in diplomacy and international relations.
Limitation: In an interconnected world, states are increasingly challenged by transnational issues like climate change, pandemics, and terrorism that no single state can solve alone.
Practice — then mark it
The whole point: a real Cambridge question, marked mark-by-mark.
Test Your Knowledge on Global Actors
Test Your Knowledge on Global Actors
Extra simulations & links
PhET, GeoGebra and other curated tools — open in a new tab.
Frequently asked
Checkpoint
One marked question is worth ten re-reads — close the loop before you move on.
Reading it isn’t knowing it — prove it.
Before you move on: do Test Your Knowledge on Global Actors on paper, snap a photo, and get examiner-style feedback on exactly where you win and lose marks.
Discuss Global actors — states, IGOs and NGOs
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