Unit V: The Second World War and the New World Order
Table of Contents
This final unit explores the climax of 20th-century global conflict and the subsequent institutional efforts to create a stable, peaceful world order through international cooperation.
1. The Second World War: Causes & Consequences
World War II (1939–1945) was the most destructive conflict in human history, involving the majority of the world's countries and all of the great powers.
Primary Causes:
- Failures of the Treaty of Versailles: The harsh terms created a "peace built on quicksand."
- Failure of the League of Nations: It proved powerless against the aggression of Japan, Italy, and Germany.
- The Rise of Totalitarianism: The expansionist policies of the Axis powers (Germany, Italy, Japan).
- Immediate Cause: The German invasion of Poland on September 1, 1939.
Major Consequences:
- End of European Dominance: Britain and France were weakened; the USA and USSR emerged as superpowers.
- The Holocaust: Systematic genocide of 6 million Jews and millions of others by the Nazi regime.
- Atomic Age: The first use of nuclear weapons in Hiroshima and Nagasaki changed warfare forever.
- Decolonization: The weakening of colonial powers led to independence movements in Asia and Africa.
2. War-time Conferences
As the war progressed toward an Allied victory, the "Big Three" leaders met to plan the post-war world.
| Conference | Leaders Involved | Key Decisions |
|---|---|---|
| Yalta Conference (Feb 1945) | Roosevelt, Churchill, Stalin | Agreement to divide Germany into 4 occupation zones; USSR to enter war against Japan. |
| Potsdam Conference (July 1945) | Truman, Attlee, Stalin | Finalized German borders; demanded "unconditional surrender" from Japan; reparations details. |
3. The United Nations Organization (UNO)
Established on October 24, 1945, the UNO was designed to succeed the League of Nations with a stronger mandate for peace.
Aims and Objectives:
- To maintain international peace and security.
- To develop friendly relations among nations based on equal rights.
- To achieve international cooperation in solving economic, social, and cultural problems.
- To promote respect for human rights and fundamental freedoms.
4. Organs and Achievements of the UNO
The UNO operates through six principal organs to manage global affairs.
- General Assembly: The main deliberative assembly of all member states.
- Security Council: Responsible for peace and security; has 5 permanent members with Veto Power (USA, UK, France, Russia, China).
- Secretariat: The administrative arm, headed by the Secretary-General.
- International Court of Justice (ICJ): The principal judicial organ located in The Hague.
Major Achievements:
- Conflict Prevention: Successfully prevented several regional conflicts from escalating into global wars.
- Humanitarian Aid: Agencies like UNICEF and WHO have saved millions of lives globally.
- Decolonization: Played a crucial role in the transition of former colonies to independent states.
5. Exam Corner
The UNO succeeded where the League failed because:
- It included all major superpowers (especially the USA).
- It had the power to use military force (Peacekeeping).
- The Veto system ensured that no major power would leave the organization over a disagreement.
Frequently Asked Questions
| Question | Quick Answer |
|---|---|
| When is UN Day celebrated? | October 24th (commemorating the 1945 Charter). |
| What was the 'Iron Curtain'? | A term coined by Churchill to describe the division between democratic West and communist East Europe. |
| Who were the 'Big Three' at Potsdam? | Truman (USA), Stalin (USSR), and Attlee (UK). |
Exam Tip: When discussing the UNO, always highlight the Security Council. It is the only organ with the authority to issue binding resolutions on member states.