4.1.5

The Breakdown of the US-Soviet Alliance

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The Ideological Differences Between the Superpowers

Ideological differences (differences in political ideas) between the USA and Soviet Union led to emerging tension and distrust. A ‘Cold War’ refers to a conflict fought in every way except direct fighting between the 2 sides.

Truman and the USA

Truman and the USA

  • Harry S. Truman became president of the USA after Roosevelt’s death in April 1945.
    • He was less sympathetic towards the communist dictatorship in the Soviet Union.
  • Roosevelt had held the alliance together and after his death. Truman’s approach was more hard-line.
Stalin and the Soviet Union

Stalin and the Soviet Union

  • Stalin was distrustful of Truman, who demanded lots of things at Potsdam (July–August 1945).
  • He was angry that Truman had tested the atomic bomb before the conference without consulting him .
    • However, Stalin was already aware of the progress the USA was making.
  • These tensions deepened the breakdown of wartime cooperation.
Churchill and Britain

Churchill and Britain

  • Churchill believed that a defeated Germany should be rebuilt, but Stalin wanted to weaken it through reparations.
  • Churchill suspected that Soviet troops would not leave the Eastern European countries that they had “liberated”.
  • Britain’s economy had been severely impacted by the war, and it could not act against the Soviet Union on its own.
    • As a result, Britain aligned more closely with the USA, leading to the division of Europe that became the Cold War.
Capitalism vs communism

Capitalism vs communism

  • The Soviet Union supported communism, whilst the USA and Britain supported capitalism.
  • Communism: The government owns property and businesses, aiming for equality and state control of the economy.
  • Capitalism: Individuals and businesses own property, aiming for profit through competition and private enterprise.
    • The two systems were incompatible, as each side believed its ideology was the best model for peace and progress.
Jump to other topics
1

Was the Treaty of Versailles Fair?

1.1

What were the Motives and Aims at Versailles?

1.1.1The Treaty of Versailles1.1.2Roles of Wilson, Clemenceau & George
1.2

Did the Victors Get Everything They Wanted?

1.2.1The Terms: Territory1.2.2The Terms: Reparations1.2.3The Terms: Armaments1.2.4The Terms: War Guilt1.2.5The League of Nations1.2.6French Reaction1.2.7American Reaction1.2.8British Reaction1.2.9Countries Left Out of the Treaty of Versailles
1.3

What was the Impact on Germany up to 1923?

1.3.1German Reaction to the Treaty1.3.2Germany’s Allies1.3.3Economic Impacts: Ruhr & Hyperinflation1.3.4Social Impacts of the Treaty in Germany1.3.5Political Impacts of the Treaty on Germany1.3.6Reducing Reparation: The Dawes Plan
1.4

Could the Treaty be Justified at the Time?

1.4.1Positives & Negatives1.4.2Contemporary Opinions About the Treaty
2

Was the League of Nations a Success?

2.1

How did Weaknesses in the League Lead to Failure?

2.1.1The League of Nations2.1.2Structure of the League: Assembly & Council2.1.3Structure of the League: Special Commissions2.1.4Structure of the League: Permanent Court2.1.5Structure of the League: Secretariat2.1.6Financial Crisis in the World
2.2

The League’s Success in Peacekeeping

2.2.1Successes: International Borders2.2.2Successes: International Agreements2.2.3Failures: Vilna (1920)2.2.4Åland Islands 1920-212.2.5Failures: Corfu 19232.2.6Failures: Bulgaria 1925
2.3

How Important was the League's Humanitarian Work?

2.3.1Refugees, Health, Slavery, Working Conditions 12.3.2Refugees, Health, Slavery, Working Conditions 2
2.4

How did the Depression Impact the League?

2.4.1The Great Depression, 19292.4.2The Manchurian Crisis, 19312.4.3Invasion of Abyssinia, 1935
3

How did Hitler's Foreign Policy Impact the War?

3.1

What were the Long-Term Consequences of Versailles

3.1.1Long-Term Consequences of Versailles
3.2

What were the Consequences of the League's Failure

3.2.1The Disarmament Conference3.2.2Collapse of the League of Nations3.2.3Tension in Europe in the 1930s3.2.4WWII & Failure of the League of Nations3.2.5Weak Nations
3.3

Was the Policy of Appeasement Justified?

3.3.1The Spanish Civil War, 1936-393.3.2The Sudetenland3.3.3Arguments for Appeasement3.3.4Arguments Against Appeasement3.3.5Reasons & Acts of Appeasement3.3.6Impact of Appeasement
3.4

How Important was the Nazi-Soviet Pact?

3.4.1The Nazi-Soviet Pact3.4.2The Polish Crisis & the Outbreak of War
3.5

Why did Britain & France Declare War on Germany?

3.5.1The Guarantee for Poland and the War3.5.2Hitler’s Foreign Policy & Rearmament3.5.3Hitler's Plan3.5.4The Saar3.5.5Remilitarisation of the Rhineland3.5.6The Rome-Berlin Axis3.5.7Germany & Italy in the Spanish War3.5.8The Anti-Comintern Pact3.5.9Anschluss with Austria3.5.10The Munich Agreement3.5.11The Crisis over Czechoslovakia
4

Who was to Blame for the Cold War?

4.1

Why did the US-Soviet Alliance Break Down?

4.1.1Cold War - Definition4.1.2The Grand Alliance4.1.3The 1945 Summit Conferences4.1.4Early US-Soviet Relations4.1.5The Breakdown of the US-Soviet Alliance4.1.6Attitudes of Truman & Stalin4.1.7US & Soviet Attitudes to Peace
4.2

How did the USSR Gain Control of Eastern Europe?

4.2.1The USSR & Eastern Europe
4.3

How did the US React to Soviet Expansionism?

4.3.1The Beginning of the Cold War4.3.2The Truman Doctrine & Marshall Plan4.3.3East-West Boundaries4.3.4Berlin Crisis
4.4

What were the Consequences of the Berlin Blockade?

4.4.1Germany4.4.2Bizonia4.4.3Berlin Blockade4.4.4FRG & GDR4.4.5NATO4.4.6Warsaw Pact
4.5

Who was More to Blame for Starting the Cold War?

4.5.1The Responsibility for Cold War Tensions4.5.2Blame on the USRR4.5.3Blame on the US4.5.4Sharing the Blame
5

Did the US Contain the Spread of Communism?

5.1

The US and Korea, 1950-53

5.1.1The US and Korea: Background to the Crisis5.1.2The Korean War5.1.3The Course of the Korean War
5.2

The US and Cuba, 1959-62

5.2.1Build-Up to the Cuban Missile Crisis5.2.2The Cuban Missile Crisis5.2.3Consequence of the Cuban Missile Crisis
5.3

The US and Vietnam, 1955-75

5.3.1French Rule in Vietnam5.3.2President Eisenhower5.3.3President Kennedy5.3.4The Gulf of Tonkin Incident, 19645.3.5US Tactics5.3.6Vietcong Tactics5.3.7The Vietcong5.3.8The My Lai Massacre, 19685.3.9Vietnamisation5.3.10The Tet Offensive, 19685.3.11Attacks on Cambodia & Laos5.3.12The Bombing of North Vietnam5.3.13The Failure of Vietnamisation5.3.14The Growth of Opposition5.3.15The Draft System5.3.16The Kent State University Shootings, 19705.3.17Political Opposition5.3.18Reasons for Support 15.3.19Reasons for Support 25.3.20Political Support5.3.21Peace Negotiations5.3.22The Paris Peace Accords, 19735.3.23Economic & Human Costs 15.3.24Economic & Human Costs 25.3.25The Strengths of North Vietnam 15.3.26The Strengths of North Vietnam 25.3.27The Weaknesses of the US 15.3.28The Weaknesses of the US 25.3.29Opposition in the US5.3.30Reasons Why USA Lost
6

How was USSR's Control Over Eastern Europe?

6.1

Opposition to Control in Hungary & Czechoslovakia

6.1.1Causes of Opposition6.1.2The Hungarian Uprising6.1.3Czechoslovakia, 19686.1.4Reaction to the Brezhnev Doctrine
6.2

Similarities Between Hungary & Czechoslovakia

6.2.1Hungary and Czechoslovakia 16.2.2Hungary & Czechoslovakia 2
6.3

Why was the Berlin Wall Built?

6.3.1The Berlin Wall 16.3.2The Berlin Wall 26.3.3The U2 Crisis
6.4

Solidarity in Poland & Soviet Influence

6.4.1Solidarity in Poland
6.5

Gorbachev's Responsibility

6.5.1Reagan & Gorbachev6.5.2Reagan and the ‘Second Cold War’6.5.3The Collapse of Soviet Control6.5.4The Collapse of the USSR

Practice questions on The Breakdown of the US-Soviet Alliance

Can you answer these? Test yourself with free interactive practice on Seneca — used by over 10 million students.

  1. 1
    Which of the below is true about the leaders' attitudes in the post-war world?True / false
  2. 2
    Why was Stalin angry with Truman?Multiple choice
  3. 3
    After Roosevelt's death, Truman took a harder stance towards the Soviet Union. <br><br>How did Truman's approach influence the early Cold War tensions?Multiple choice
  4. 4
    During the Potsdam Conference, Stalin was angered by Truman's actions. <br><br>What does this reveal about their relationship and communication?Multiple choice
  5. 5
    During the 20th century, countries around the world developed different economic systems based on their political beliefs.<br><br> How did ideological differences shape the economic systems of communism and capitalism in the 20th century?Multiple choice
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Early US-Soviet Relations

Attitudes of Truman & Stalin