World Map of Peace
UN Security Council: tasks, members and voting
The Security Council of the United Nations has 15 members and, under the Charter, holds primary responsibility for maintaining world peace. How it is composed, how it votes and what it may decide under Chapters VI and VII
Key points at a glance
- The UN Security Council has 15 members: five permanent ones named in the Charter and ten non-permanent ones elected by the General Assembly.
- Non-permanent members serve for two years. A retiring member cannot be re-elected immediately.
- Procedural matters need nine affirmative votes. All other decisions need nine votes, including the concurring votes of the permanent members.
- Chapter VI of the Charter describes the peaceful settlement of disputes, Chapter VII the measures in case of a threat to or breach of the peace, with and without armed force.
In numbers
15
members of the Security Council
Article 23 of the Charter
9
votes for a decision
Article 27 of the Charter
2
years in office for non-permanent members
Article 23 of the Charter
- Members in total15
- Affirmative votes for a decision9
- Non-permanent members10
- Permanent members5
Votes required
- Procedural matters
- 9
- All other decisions
- 9
Addition
- Procedural matters
- none
- All other decisions
- including the concurring votes of the permanent members
- Data basis
- Charter of the United Nations, Chapters V to VII, retrieved on 28.10.2026
- Publisher
- United Nations
- Reading note
- Renderings of the English original are paraphrases, not an official translation
- Not included
- The current membership and presidency of the Council are not listed here
- Author
- Johannes Max Harms
How is the UN Security Council composed?
Under Article 23 of the Charter, the Council consists of 15 members of the United Nations. Five of them are permanent members, ten are non-permanent and are elected by the General Assembly.
The Charter itself names the permanent members. In the 1945 wording these are the Republic of China, France, the Soviet Union, the United Kingdom and the United States. This page makes no statement about who holds the seats today and does not list the members currently elected.
The non-permanent members serve for two years and cannot be re-elected immediately. The text of Article 23 mentions the earlier number of eleven members, which was later raised to 15. How the Council mandates UN missions is described on the page Blue Helmets.
What is the task of the Council?
Under Article 24 of the Charter, the members of the United Nations confer on the Security Council primary responsibility for the maintenance of international peace and security.
In Article 25, the members agree to accept and carry out decisions of the Council in accordance with the Charter. This page describes Chapters VI and VII.
Which wars and conflicts exist at present is a separate question and is covered on the page Current wars worldwide. Here only the framework is described, not individual decisions or states.
How does the Council vote?
Each member of the Council has one vote. Decisions on procedural matters need nine affirmative votes. Decisions on all other matters also need nine votes, including the concurring votes of the permanent members.
A party to a dispute must abstain from voting on decisions under Chapter VI. This is laid down in Article 27 of the Charter.
UN members not represented on the Council can take part in the discussion without a vote if their interests are especially affected. The Council itself adopts its rules of procedure and elects its president.
What does Chapter VI of the UN Charter regulate?
Chapter VI deals with the peaceful settlement of disputes. The parties to a dispute should first seek a solution themselves: by negotiation, enquiry, mediation, conciliation, arbitration, judicial settlement, resort to regional bodies or other peaceful means of their own choice (Article 33).
The Council can investigate any dispute and any situation that might lead to international friction (Article 34). If the parties fail to find a solution, they refer the dispute to the Council. The Council then decides whether to recommend a procedure under Article 36 or terms of settlement (Article 37).
What does Chapter VII of the UN Charter regulate?
Chapter VII concerns threats to the peace, breaches of the peace and acts of aggression. Under Article 39, the Council determines whether such a situation exists and makes recommendations or decides on measures under Articles 41 and 42. Provisional measures are possible under Article 40 and leave the rights and positions of the parties unaffected.
Article 41 names measures without armed force: complete or partial interruption of economic relations and of transport and communication links, and the severance of diplomatic relations. If these are not enough, the Council can decide on action by air, sea or land forces under Article 42.
Under Article 43, members make armed forces available to the Council under special agreements. Article 51 secures the right of self-defence until the Council has taken the measures necessary. Which UN missions the Council has mandated is described on the page Blue Helmets. On nuclear questions, see the page Nuclear weapons worldwide.
Charter of the United Nations, Article 24, paraphrased
The members confer on the Security Council primary responsibility for the maintenance of international peace and security.
Sources
The main provisions of the Charter on the Security Council
| Provision | Content |
|---|---|
| Article 23 | Composition: 15 members, five permanent and ten elected |
| Article 24 | Primary responsibility for world peace and international security |
| Article 25 | Members accept and carry out decisions of the Council |
| Article 27 | Voting and the majorities required |
| Chapter VI | Peaceful settlement of disputes |
| Chapter VII | Measures in case of a threat to or breach of the peace and acts of aggression |
Source: Charter of the United Nations, Chapters V to VII, retrieved on 28.10.2026. The contents are paraphrased.
More in this series
- Blue Helmets: the UN peacekeeping missionsUN Department of Peace Operations, Fact Sheet October 2025At the end of October 2025 the United Nations ran eleven peacekeeping missions with 67,783 people in total. Who the Blue Helmets are, where they are deployed, which countries provide the most personnel and what role Germany plays
- Current wars and conflicts worldwideUCDP and HIIK Conflict Barometer, data for 2025How many wars there are depends on who is counting. The Uppsala Conflict Data Program counted 13 wars for 2025, the Heidelberg Conflict Barometer 28. Where they are, how the counts are made and how the number has changed over ten years, data as of October 2026
- Which countries have nuclear weapons?SIPRI Yearbook 2026, as of January 2026Nine states own nuclear weapons according to SIPRI, around 12,187 warheads in total in January 2026. Which countries they are, how the number has developed since 1986 and what treaties and nuclear sharing regulate
More questions about the Security Council
How long do the non-permanent members serve?
Under the Charter, the non-permanent members are elected for two years. A retiring member cannot be re-elected immediately. Each member of the Council has one representative.
How does the Council set its way of working?
The Council adopts its own rules of procedure, which include the election of its president. It can set up subsidiary organs.
The Charter also provides that the Council is organised so that it can work continuously. It may also meet at places other than the seat of the United Nations.
Can states without a seat on the Council take part in the discussion?
A UN member that is not represented on the Council can take part in the discussion of a question without a vote if its interests are especially affected. Article 31 of the Charter regulates this.
What applies to the right of self-defence?
Article 51 of the Charter leaves the right of self-defence in case of an armed attack untouched until the Security Council has taken the measures necessary. Measures taken by a state in exercise of this right must be reported to the Council immediately.
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