History & Culture / U.S. History / 09
CHAPTER 09 1920–1945
The Great Depression, the New Deal, and World War II
Economic collapse and global war transformed the federal government's responsibilities while testing America's commitment to freedom.
How did economic crisis and war reshape the relationship between citizens and the state?
Dorothea Lange photographed Florence Thompson and her children at Nipomo, California. The Depression was more than a movement in stock prices: it unsettled the meals and shelter of families traveling in search of work.Dorothea Lange, working for the United States Resettlement Administration · Collection record and reuse information
Prosperity on Uneven Foundations
The prosperity of the 1920s rested on uneven foundations. Cars, radios, installment buying, and stock speculation promised a modern life, but farmers struggled with debt and many households lacked purchasing power. The 1929 market crash exposed these weaknesses. Bank failures, shrinking credit and money supplies, and collapsing international trade then reinforced one another, turning a downturn into the Great Depression.
Unemployment became a family emergency rather than an abstract economic measure. People queued for food or traveled in search of work. On the Great Plains, drought and damaging farming practices produced the Dust Bowl. Herbert Hoover supported some federal intervention, but his response proved inadequate. The crisis challenged the belief that private charity and individual effort could provide sufficient protection.
From a Financial Shock to Lost Livelihoods
People who owned no shares could still suffer. Bank failures destroyed savings and reduced lending; businesses unable to obtain funds cut production and jobs. Unemployment reduced spending, weak demand pushed prices down, and falling incomes increased the real burden of fixed debts. These feedbacks carried financial distress into factories, shops, and farms rather than leaving it inside the stock market.1
War debts, reparations, American lending, and the gold standard connected national economies. Institutions responsible for stability faced disagreements and limits on coordination and authority. Federal Reserve failures contributed to the downturn's severity. Explaining the Depression therefore requires tracing policy and institutional mechanisms, not treating it as a single speculative crash or a punishment for personal moral failure.
The New Deal and Federal Responsibility
After taking office in 1933, Franklin Roosevelt launched the New Deal. Banking reforms, public employment, labor protections, and Social Security expanded federal responsibility. These measures brought relief and lasting institutional change, but recovery remained uneven. Agricultural and domestic workers were initially excluded from important protections, disproportionately disadvantaging Black workers and women. A sharp recession in 1937 exposed the recovery's fragility.
Relief, Recovery, and Lasting Institutions
New Deal policies worked on different timescales. Immediate relief, renewed economic activity, and reform against future crises were distinct goals. Deposit insurance addressed banking confidence; public works left infrastructure; labor legislation supported bargaining; Social Security created a basis for public protection against old age and unemployment. Outcomes include both current production and the institutions available to later generations.2
Policies emerged through conflict among Congress, courts, business, and labor. Farm measures could favor owners while harming some tenants and workers; major gaps remained in social and labor protections. Roosevelt's court-reorganization proposal raised concerns about executive power. The 1937 downturn exposed incomplete recovery. Judging the New Deal requires separating institutional achievements, exclusion, and the conditions necessary to end the Depression.
Mobilization and the Burdens of Victory
War transformed the economy again. After Japan attacked Pearl Harbor in 1941, the United States entered World War II. Military production and enormous federal spending greatly reduced unemployment. Women and Black Americans gained industrial jobs while continuing to face discrimination. The forced removal and incarceration of Japanese Americans revealed how severely wartime fear could undermine constitutional rights.
In August 1945, American atomic bombs devastated Hiroshima and Nagasaki. Civilian deaths and radiation injuries left an enduring moral burden. American decisions involved hopes for rapid victory, fears of invasion casualties, and military and diplomatic calculations. Japan's surrender also reflected Soviet entry into the war, blockade, conventional bombing, and decisions within Japan's leadership. Historians continue to debate their relative weight. Victory made the United States a global power with unprecedented responsibilities.
World War and the Responsibilities of Victory
War had expanded in Asia and Europe before American entry. Japan's invasion of China and German expansion formed parts of a developing global conflict. The United States supplied the Allies amid resistance to direct involvement, then entered war with Japan after Pearl Harbor and shortly afterward with Germany and Italy. Federal contracts, resource allocation, rationing, military service, and industrial work reorganized households as well as production.
The United States helped defeat Nazi Germany but also failed to admit many people fleeing Nazi persecution. At home, Japanese Americans, including citizens, faced forced removal and incarceration. These records should be assessed separately rather than made to cancel each other. Victory brought leadership in the United Nations and international economic arrangements while cooperation with the Soviet Union deteriorated. It initiated new responsibilities and conflicts rather than resolving every contradiction.3
A Historian's Question · Ending a Crisis and Changing Society
David M. Kennedy connects Depression and war while emphasizing the New Deal's institutional pursuit of security. The published chapter abstract distinguishes eventual recovery from enduring reform. This approach asks what recovered, what changed, and who benefited, rather than making a single success-or-failure label answer every question.4
A Global Depression and the Search for a New Order
The Depression spread through international credit and trade networks. Economic insecurity encouraged political radicalization, but dictatorship and war also depended on national institutions and leaders' choices. The Bretton Woods arrangements and the United Nations emerged from efforts to prevent renewed monetary instability and global conflict.
How the changes connect
01 / Conditions
Unequal purchasing power, agricultural distress, and financial weaknesses interacted with the market crash, bank failures, monetary contraction, and falling international trade.
02 / Choices and conflict
The New Deal pursued relief, recovery, and reform; wartime mobilization subsequently expanded production, government spending, and employment on a much larger scale.
03 / Consequences
Federal responsibility and American global influence expanded, while discrimination, wartime violations of rights, and the consequences of nuclear weapons remained unresolved.
The sequence of events
- The stock market crashed, and the banking and economic crises deepened.
- Roosevelt took office and launched the New Deal.
- Congress enacted the Social Security Act and the National Labor Relations Act.
- The United States entered World War II after Japan attacked Pearl Harbor.
- Germany surrendered; atomic bombings and Soviet entry into the Pacific war preceded Japan's surrender.
People and places
People
- Franklin D. Roosevelt
- President during the Depression and most of World War II. His New Deal strengthened federal involvement in economic stability and social protection.
- Frances Perkins
- The first woman to serve in a U.S. Cabinet, she helped develop Social Security and labor protections as secretary of labor.
- Harry S. Truman
- President after Roosevelt's death in 1945. His role in the use of atomic bombs and the shaping of the postwar order remains central to debates about presidential responsibility.
Places
- Wall Street
- New York's financial center and a symbol of the 1929 crash. The Depression, however, extended well beyond stock speculation and involved national and international forces.
- The Great Plains
- An agricultural region devastated by drought and soil damage during the Dust Bowl. Many farm families lost their livelihoods and migrated.
- Pearl Harbor
- A U.S. naval base on Oahu, Hawaii. Japan's attack in 1941 brought the United States directly into the war.
A question to consider
Does the creation of public-works jobs prove that the New Deal completely ended the Great Depression?
A perspective to consider
It demonstrates an effect on relief and employment, not complete recovery. A fuller judgment must consider unemployment, production, the 1937 recession, monetary and banking policies, and wartime mobilization. The New Deal's lasting institutional reforms should also be distinguished from the timing and causes of recovery.
Notes · Scholarship and evidence
- Economic-history research essayGary Richardson, The Great Depression (Federal Reserve History, 2013).
Explains banking crises, monetary contraction, deflation, and policy failures without reducing the entire Depression to one cause.
Back to text ↑ - Primary source · social legislationNational Archives, Social Security Act (1935) (Milestone Documents).
Documents objectives and coverage without assuming that the original system matched today's or included all workers.
Back to text ↑ - Primary source · wartime executive orderNational Archives, Executive Order 9066: Resulting in Japanese-American Incarceration (1942; Milestone Documents).
Documents Japanese American removal and incarceration. Refugee policy was separately checked against the U.S. Holocaust Memorial Museum's The United States and the Holocaust.
Back to text ↑ - Scholarly book chapter · public abstractDavid M. Kennedy, What the New Deal Did (The American People in the Great Depression, 2003, ch. 12, pp. 363–380).
Uses the public Oxford Academic abstract's distinction between recovery and reform, not unconsulted passages behind the access restriction.
Back to text ↑
Sources and further reading · 3
- FDR Presidential Library and Museum — Confront the Issue
- The National WWII Museum — The End of World War II 1945
- Harry S. Truman Presidential Library · The Decision to Drop the Atomic Bomb
Primary records, correspondence, and diaries concerning the decision to use atomic bombs.
This introductory narrative was written using the scholarship and records listed here. Dates are selective. Every historical image reflects choices made by its creator and must be read in context.