The Great Depression, the Second World War and the Early Cold War
Explain the Depression and New Deal, changing foreign policy from the mid-1930s through the early Cold War, and social change in the 1940s and 1950s. Compare policy goals and outcomes across groups, using specific programmes, conflicts, laws and cases.
Section 3 · The Great Depression, the Second World War and the Early Cold War
Exam scope and assessment notes
Cambridge lists AS Level US History since 1877 (8102) for centres in the United States of America only. It is a new qualification for first assessment in 2027 and replaces the US route through 9489; the last US 9489 assessment is November 2026. All historical analysis is original study material. Learners should verify details against the current official syllabus and prescribed class materials. Extended responses here are for formative practice only: StudyForA does not reproduce Cambridge questions, authenticate assessed work, apply official mark schemes or award Cambridge grades.
Before you begin
- Identify the date range and exact issue in the key question.
- Distinguish evidence, interpretation and judgement; compare groups and perspectives.
Work on paper. Try each question before revealing help, and explain why your method works.
Quick readiness check
Which approach best prepares for the great depression, the second world war and the early cold war?
What you will learn
- What were the causes and impacts of the Great Depression and New Deal?
- Why and how did US foreign policy evolve between 1935 and 1959?
- Why and how far did US society change in the 1940s and 1950s?
3.1 · Depression, Hoover and the New Deal
Explain interacting causes of the Depression: overproduction and surplus, high tariffs, easy credit, speculation, the Crash and bank failures. Compare unemployment, homelessness, migration and family separation across groups, including African Americans and people of Hispanic heritage.
Assess Hoover's rugged individualism, the Reconstruction Finance Corporation, Emergency Relief and Construction Act, Federal Home Loan Bank Act and response to the Bonus Army. Then compare Roosevelt's Three Rs, First Hundred Days, First and Second New Deal, opposition, Supreme Court rulings, court-packing plan, New Deal Coalition and expanded federal power.
3.2 · War, containment and the Cold War
Trace early responses to war in Europe through the Neutrality Acts, Lend-Lease and Pearl Harbor. Explain wartime and post-war foreign policy as US power and international commitments changed, not as an unbroken consensus.
Compare Yalta and Potsdam, the Iron Curtain, atomic weapons and the nuclear arms race, Truman Doctrine and Marshall Plan, Berlin Blockade and Airlift, NATO and Warsaw Pact, communism in China, the Korean War, Eisenhower's New Look, Khrushchev's peaceful coexistence, Suez, the Eisenhower Doctrine and the space race.
3.3 · Society, anti-communism and civil rights, 1939–59
Assess the Second Red Scare, HUAC, anti-communist legislation and effects on political speech. For civil rights, include wartime race relations, the Double-V campaign, the internment of Japanese Americans, NAACP, CORE, SCLC and leaders including James Farmer, A. Philip Randolph, Bayard Rustin, Thurgood Marshall and Martin Luther King Jr.
Compare responses in the South, Montgomery Bus Boycott, Southern Manifesto, sit-ins and Little Rock Nine, alongside federal action and cases including Korematsu, Executive Order 9981, Shelley, Henderson, Brown, Browder and the 1957 Civil Rights Act. Explain both gains and continuing resistance.
Sources for this lesson
Pause and explain
What should a strong answer about the great depression, the second world war and the early cold war do?
Worked example
How far did the New Deal end the Great Depression?
Show the worked solution
- Separate immediate relief from recovery and long-term reform.
- Assess programmes, opposition and evidence of remaining hardship.
- Place the New Deal alongside wartime mobilisation and wider economic conditions.
Answer The New Deal created relief programmes, financial regulation and new labour and social protections, while expanding federal responsibility. It faced opposition and did not remove all unemployment or inequality. Wartime mobilisation later transformed production and employment, so the New Deal was significant without being the sole cause of recovery.
Try a topic test
Choose Easy, Normal or Difficult. Save your answers and open worked review after finishing.
Test this topic →From guided practice to a new situation
Write your answer and reasoning first. Use a hint only if you are stuck. The model solution is for self-checking; your written work is not automatically marked.
Why were the causes of the Great Depression interconnected?
Give me a hint
Connect structural weaknesses to the crash and human effects.
Compare my reasoning
- Identify the issue and date range.
- Select named syllabus evidence.
- Explain what it shows and qualify the claim.
Overproduction, tariffs, easy credit and speculation made the economy vulnerable; the Crash and bank failures worsened the crisis. Unemployment and displacement differed across groups. A strong explanation links financial causes to household effects and then evaluates government responses.
Look for these in your work
- Uses specific evidence
- Explains the evidence's significance
- Keeps the conclusion within the period
How far did the US change its foreign policy between 1935 and 1959?
Give me a hint
Trace a sequence from neutrality to global commitments and compare approaches.
Compare my reasoning
- Set a clear criterion for the question.
- Compare at least two pieces of evidence or perspectives.
- Make a balanced judgement and acknowledge a limit.
The US moved from Neutrality Acts and caution toward Lend-Lease and wartime entry, then to containment, aid, alliances and involvement in Korea. Administrations differed in strategy, from Truman's doctrine to Eisenhower's New Look. The shift was major but developed through events and choices, not a single turning point.
Look for these in your work
- Compares relevant evidence
- Explains cause, change or consequence
- Reaches a reasoned judgement
Original practice claim (not a historical source): ‘Civil-rights progress in the 1940s and 1950s came only from federal action.’ Evaluate it.
Give me a hint
Compare federal policy and court decisions with local organising and resistance.
Compare my reasoning
- Identify the claim's assumption.
- Check it against named syllabus evidence and another perspective.
- Explain a balanced conclusion and any missing evidence.
Federal orders and court rulings mattered, but civil-rights groups, local campaigns and individual leaders also drove change. Southern resistance continued and enforcement varied. The claim overlooks grassroots action and the interaction between activism, law and government.
Look for these in your work
- Identifies an assumption
- Checks more than one perspective
- States a supported, qualified conclusion
Common mistakes
- Reducing the Depression to the stock-market crash alone
- Treating Cold War policy as inevitable or identical across administrations
- Using civil-rights laws as proof that discrimination ended
What can you explain now?
What were the causes and impacts of the Great Depression and New Deal?
Compare with the explanation
Why and how did US foreign policy evolve between 1935 and 1959?
Explain the Depression and New Deal, changing foreign policy from the mid-1930s through the early Cold War, and social change in the 1940s and 1950s. Compare policy goals and outcomes across groups, using specific programmes, conflicts, laws and cases.
After trying it yourself, choose your next review. This is your self-assessment.
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Make it stick
State the central issue in what were the causes and impacts of the great depression and new deal?, give one specific example from the syllabus and explain what would qualify your conclusion.
If you needed the solution, close it and solve the problem again from a blank page. A correct answer is stronger when you can explain the reason for each step.