The big idea: IGOs — above all the United Nations — are the main international bodies for preventing and ending conflict.
Real but limited power
- Through the Security Council, peacekeeping, mediation and aid, they can help stop wars.
- But they depend on states.
- They are hamstrung by the veto, so their power is real yet limited.
- Authorise action — the UN Security Council can approve sanctions or the use of force.
- Keep the peace — deploy peacekeepers to monitor ceasefires and protect civilians.
- Mediate — bring warring sides together to negotiate.
- Relieve suffering — coordinate humanitarian aid for civilians and refugees.
The veto: power and paralysis: The UN Security Council has five permanent members (the P5) who each hold a veto. This makes the UN powerful when the P5 agree — and paralysed when they do not.
The central limit on IGOs: So the UN can act decisively in some conflicts and do nothing in others, not because the crisis is smaller, but because a great power blocks it. This is the central limit on IGOs in conflict.
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IGOs can do things no single state can — grant legitimacy, coordinate many countries, and deploy neutral peacekeepers. But they are only as strong as their members allow, and great-power politics can stop them acting.
How IGOs help end conflict
The UN and regional bodies can authorise collective action, deploy peacekeepers to separate sides and protect civilians, mediate ceasefires, impose sanctions, and coordinate humanitarian relief — and crucially they lend legitimacy that one country acting alone lacks, making intervention more acceptable.
Why IGOs are limited
The UN depends on states for troops, money and consent, the P5 veto can block strong action even against atrocities, missions can be under-resourced or have weak mandates, and IGOs cannot force sovereign states to comply — so their power is real but conditional on great-power agreement.
Case study — the UN's mixed record in conflict: The UN's record shows both its value and its limits.
In some conflicts: success
- UN peacekeepers and mediation helped hold ceasefires
- They protected civilians and supported peace deals
- Successes only a legitimate international body could achieve
In others: failure
- The Security Council was paralysed by the veto of a permanent member
- Missions were sent in with too few troops and weak mandates
- The UN could not stop mass violence
The lesson: IGOs like the UN are indispensable but conditional actors — powerful when states, especially the great powers, back them, and weak when they do not.
The key point: IGOs — above all the UN — are the main international actors on conflict, offering legitimacy, peacekeeping, mediation and aid that no single state can. But they depend on their members and are hamstrung by the veto, so their effectiveness is conditional on great-power agreement.
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Is the UN an effective peacemaker or a paralysed talking shop? And can IGOs really resolve conflict, or only the parties themselves? Recurring debates. Weigh them.
The case for reform
Because the veto and unequal power hamper the UN, many argue for reform — expanding the Security Council, limiting the veto in cases of atrocity, and better-resourcing peacekeeping — so the UN can act more consistently.
Why the UN still matters despite its flaws
Even hamstrung, the UN provides the only near-universal forum for collective security, the legitimacy that makes intervention acceptable, and peacekeeping and aid that save lives — so its flaws argue for reform, not abolition.
One view: essential peacemakers
- Legitimacy
- Peacekeeping
- Mediation
- Aid
Another view: paralysed
- Blocked by the veto
- Dependent on states
Two perspectives — the judgement: Strong essays judge that the UN is indispensable but conditional — highly effective when great powers back it, weak when they block it. So the realistic conclusion is usually reform rather than dismissal or blind faith.
How IGOs in conflict come up in Paper 2: A Paper 2 essay might ask whether the UN is an effective actor in conflict, or whether IGOs can resolve conflict. Weigh their legitimacy and tools against the veto and dependence on states, then judge.
The 15-mark markband (what moves you up)
Bands 1–6
Mostly descriptive; perspectives not identified.
avoid
Bands 7–9
Clear knowledge, but perspectives identified, not explored.
7–9
Bands 10–12
Well-supported argument; perspectives explored.
10–12
Bands 13–15
Balanced, compelling; perspectives explored AND evaluated.
13–15
Evaluate the effectiveness of the United Nations in resolving conflicts.
Model answer plan
See the mark-by-mark plan — for / against / judgement, with marking guidance — in study mode.
Common mistakes: 1. Saying the UN always works OR never works. Its record is mixed.
2. Ignoring the veto. It is the central limit.
3. Forgetting the UN depends on states. No army of its own.
4. Listing UN successes and failures. Say what distinguishes the two.
5. No judgement. Conclude — usually reform.