The League of Nations had failed to stop the Second World War. Before the war had even ended, the Allied leaders began planning a new organisation to keep the peace. It was called the United Nations. This lesson looks at how it was set up and what problems it had from the start.
Planning the UN, 1941-45
The planning came in stages, mostly led by the USA, Britain and the USSR.
- 1941: In the Atlantic Charter, Britain's prime minister Winston Churchill and US president Franklin Roosevelt set out hopes for a better world after the war, including a lasting peace.
- 1 January 1942: Twenty-six countries fighting the Axis powers signed the Declaration by United Nations. Roosevelt had suggested the name.
- 1944: At Dumbarton Oaks, in Washington DC, representatives of the USA, Britain, the USSR and China drew up the first outline of the new organisation.
- February 1945: At the Yalta Conference, Roosevelt, Churchill and Stalin agreed how voting on the Security Council would work. This included the veto.
The San Francisco Conference, 1945
A conference of the Allied and other countries met in San Francisco from 25 April to 26 June 1945. Fifty countries sent delegates. Roosevelt had died in April, just before it opened, but the work went ahead. On 26 June the delegates signed the UN Charter.
The Charter only took effect once the five permanent members and a majority of the other signers had ratified it. This was done by 24 October 1945, and that is the day the UN officially came into existence.
🎯 Lessons from the League
The USA had never joined the League, and the League had no real power to punish aggressors. This time the planners wanted the USA and the USSR inside the organisation, and they wanted the Great Powers to carry the main responsibility for peace.
🌍 A new world
After years of war, people everywhere wanted peace. The Charter's opening words speak of saving "succeeding generations from the scourge of war".
What the Charter said the UN was for
The Charter gave the UN several main aims:
- to maintain international peace and security;
- to develop friendly relations between countries;
- to help countries work together on economic, social and cultural problems, and to encourage respect for human rights.
The Charter set up the main parts of the UN, such as the General Assembly, where every member has a vote, and the Security Council. These are explained in the lesson How the UN Works: Assembly, Security Council and Peacekeepers.
Structural problems in the Charter
The planners tried to learn from the League's failures, but some problems were built into the UN itself.
1. The veto
The five permanent members of the Security Council were the USA, the USSR, Britain, France and China. Any of them could block a Security Council decision on action by voting against it. This kept the Great Powers inside the UN, because none could be forced to act against its will. But it meant the UN could not act against a permanent member, or against that member's friends. Once the Cold War began, the USA and the USSR often blocked each other.
2. Dependence on members for troops and money
The UN had no army of its own. The Charter said members would agree to supply troops when the Security Council asked, but no standing force was ever created in this way. Peacekeepers have to be lent by member states. The UN also depends on its members to pay their dues, so a country that held back its money could weaken it.
3. The rule against interfering inside states
The Charter said the UN may not intervene in matters that are "essentially within the domestic jurisdiction" of a state. This protected each country's sovereignty, but it meant the UN could not easily step in when a government treated its own people badly or when a war broke out inside a country.
Change and continuity: the UN and the League
The UN was a fresh start, but it kept some of the League's weaknesses. Like the League, it had no army of its own and could only act if its strongest members agreed. What changed was that both the USA and the USSR were members from the start, and the Great Powers had a clear, permanent place at the centre of the Security Council.
Common mistakes
- Saying the UN was set up at Yalta. Yalta agreed the voting rules; the Charter was signed at San Francisco.
- Saying the UN has its own army. It does not; troops are lent by members.
- Thinking the veto belongs to every member. Only the five permanent members of the Security Council have it.
- Mixing up the dates: the Charter was signed on 26 June 1945, but the UN came into being on 24 October 1945.
Exam-style question
Explain TWO ways in which the United Nations Security Council of 1945 was similar to the Council of the League of Nations. (In the League Council, set up in 1919, decisions generally needed all members to agree, and the League had no army of its own.) [6 marks]
Model answer
One similarity is that a single powerful member could block action. In the League Council, decisions generally needed every member to agree, so one Great Power could stop the League acting. In the same way, the UN Charter gave each of the five permanent members of the Security Council a veto, so the USA, the USSR, Britain, France or China could stop a decision by voting against it.
A second similarity is that neither organisation had its own army. The League had to rely on Britain and France to provide the force behind its decisions, and it could not stop Japan in Manchuria. The UN also had no standing army, because troops and money had to be provided by its members, and the Security Council needed member states to lend peacekeepers.
What lifts this to the top level: two different ways, each with a precise fact about both the League and the UN.
Exam tip
In a "similar" question, show the likeness by writing about both sides in every way: "In the League ... In the same way, the UN ...". One way alone scores at most 3 out of 6.
Recap
- The UN was planned from 1941 to 1945 (the Atlantic Charter, the Declaration by United Nations, Dumbarton Oaks and Yalta) and the Charter was signed at San Francisco on 26 June 1945.
- The UN came into existence on 24 October 1945.
- The Charter's main aims were peace and security, friendly relations and cooperation on economic, social and cultural problems and human rights.
- Built-in problems: the veto of the five permanent members, dependence on members for troops and money, and the rule against interfering inside states.
- The UN was similar to the League in having no army of its own and relying on its strongest members.