On the stroke of midnight on August 15, 1947, the Union Jack came down over New Delhi and the flag of an independent India rose in its place. India had long been called the "jewel in the crown" of the empire; now the jewel was gone, and within two decades nearly the entire empire would follow it. The largest empire in human history — on which, the boast went, the sun never set — was dismantling itself.
Eight years later, in 1955, six European foreign ministers met in the Italian city of Messina to plan something stranger still: not the conquest of new territory but the voluntary surrender of a slice of national sovereignty. Nations that had been slaughtering one another for centuries — France and Germany had fought three wars in seventy years — proposed to pool their economies so tightly that war between them would become, in one architect's phrase, "not merely unthinkable, but materially impossible."
This lesson holds the two halves of postwar Europe's transformation together. Why did Europe lose its empires at the very moment it was building its union? And were these opposite stories, or the same one?
In 1945 the European empires still spanned the globe — Britain ruled a quarter of the earth's land and people; France held an empire from Indochina to West Africa; Belgium, the Netherlands, and Portugal governed vast colonial territories. Within thirty years almost all of it was gone. Decolonization — the dissolution of the European overseas empires and the emergence of dozens of new independent states — is one of the great transformations of the twentieth century. Why did it happen so fast?
First, the imperial powers were exhausted. The Second World War (Lesson 22) had bled Europe white. Britain emerged victorious but bankrupt, owing enormous war debts and dependent on American aid; France and the Netherlands had been occupied and humiliated. Empire was expensive, and the metropoles could no longer easily afford the armies needed to hold restless colonies.
Second, the war shattered the myth of European invincibility. Japan's lightning conquests of British Singapore, French Indochina, and the Dutch East Indies in 1941–1942 had proven that the white imperial powers could be beaten by a non-European army. The spell of European supremacy was broken in the eyes of colonized peoples.
Third — and most important — rose powerful nationalist independence movements. Across Asia and Africa, educated nationalist leaders demanded self-determination: the principle, enshrined in the United Nations Charter (1945), that peoples have the right to govern themselves. Colonized populations had fought and died for the empires in two world wars; they now turned the Allies' own wartime rhetoric of freedom and democracy against their rulers. Independence movements ranged from Gandhi's mass non-violent campaigns in India to armed guerrilla wars elsewhere.
Fourth, the moral and financial costs mounted. After a war fought against Nazi racism, the racial hierarchy of empire was increasingly indefensible at home and abroad. Holding colonies by force was both morally embarrassing to democracies and ruinously costly.
Fifth, Cold War pressure pushed in the same direction. Both new superpowers were, for their own reasons, anti-colonial. The United States, itself a former colony, pressed its allies to let go (and feared that clinging to empire would drive nationalists toward communism). The Soviet Union loudly championed anti-colonial liberation movements. Caught between the two, the old empires found little support for hanging on.
Connections (backward): The empires being dismantled here were built in Lesson 18 — the "Scramble for Africa," the Berlin Conference (1884–85), the ideology of the "civilizing mission." Decolonization is the unwinding of nineteenth-century imperialism, accelerated by the self-inflicted catastrophe of Europe's own world wars.
British India was the first and greatest domino. Decades of pressure from the Indian National Congress and Mohandas Gandhi's campaigns of non-violent resistance, combined with Britain's postwar exhaustion, made continued rule impossible. But independence came at a terrible price. Deep tension between the Hindu majority and the Muslim minority — the latter led by Muhammad Ali Jinnah, demanding a separate Muslim homeland — led Britain to partition the subcontinent into two states: a mostly Hindu India and a mostly Muslim Pakistan, both independent in August 1947.
Partition unleashed catastrophe. As borders were hastily drawn, an estimated 10–15 million people fled across them in the largest mass migration in human history, and communal violence killed perhaps one million. Independence was real and irreversible — but the bloody, rushed British exit became a cautionary symbol of decolonization gone wrong.
If 1947 began the end of empire, 1956 announced it to the world. When Egypt's nationalist leader Gamal Abdel Nasser nationalized the Suez Canal — the vital waterway to Asia, long controlled by British and French interests — Britain and France, in secret collusion with Israel, invaded Egypt in late October–November 1956 to seize it back and topple Nasser.
Militarily the operation succeeded; politically it was a humiliating disaster. The United States, furious at not being consulted and fearing the operation would drive the Arab world toward Moscow, refused to support its allies and applied crushing financial pressure on the British pound. The Soviet Union menaced the invaders with threats. Bowing to American pressure, Britain and France withdrew in humiliation. The Suez Crisis was a watershed: it demonstrated beyond doubt that the European powers could no longer act as global imperial players without American permission. The age of European world dominance was over; the age of the superpowers had fully arrived.
Connections (compare): Suez (1956) and the Hungarian Uprising (1956, Lesson 23) happened in the same weeks. As the West condemned Soviet tanks crushing Budapest, the Soviets pointed to British and French troops in Egypt. Each superpower disciplined its own sphere; the old European powers no longer had a sphere of their own.
France's bloodiest reckoning came in Algeria, which it ruled not as a colony but as part of France itself, home to roughly a million European settlers (pieds-noirs). When the nationalist National Liberation Front (FLN) launched a war of independence in 1954, France responded with a brutal counterinsurgency marked by torture and atrocities on both sides. The Algerian War (1954–1962) tore France apart at home: it collapsed the Fourth Republic in 1958 and returned Charles de Gaulle to power, who founded the Fifth Republic. De Gaulle, recognizing the war was unwinnable and ruinous, eventually granted Algeria independence in the Évian Accords (1962) — over the fury of settlers and army officers who attempted a coup and assassination against him. Algeria showed how decolonization, when resisted by force, could destabilize the imperial power itself.
The dam broke in sub-Saharan Africa around 1960. In that single year — the "Year of Africa" — some seventeen African nations gained independence, most from France, with others from Britain and Belgium, mostly peacefully — though Belgian Congo's independence was followed by immediate crisis. British Prime Minister Harold Macmillan captured the moment in his "Wind of Change" speech in Cape Town (February 1960): a "wind of change is blowing through this continent," and "this growth of national consciousness is a political fact." By the mid-1970s, with Portugal's empire the last to collapse (1974–75), the European overseas empires were essentially finished.
While Europe shed its empires abroad, it was knitting itself together at home. The motive was searing memory: twice in thirty years the continent had destroyed itself, and Franco-German enmity lay at the heart of both wars. A handful of visionaries concluded that the only way to make a third war impossible was to bind the old enemies together so tightly that they could not fight.
The breakthrough came on May 9, 1950, when French Foreign Minister Robert Schuman, drawing on a plan by the French planner and diplomat Jean Monnet, proposed pooling French and German coal and steel production — the very industries of war — under a single shared authority. The Schuman Declaration launched the project of integration; May 9 is still celebrated as Europe Day. The plan became the European Coal and Steel Community (ECSC), established by the Treaty of Paris (1951), with six members: France, West Germany, Italy, Belgium, the Netherlands, and Luxembourg — the "Inner Six."
Integration deepened by stages: - The Treaty of Rome (1957) created the European Economic Community (EEC), or "Common Market" — a customs union removing tariffs and allowing the free movement of goods, capital, and labor among the Six. - The Maastricht Treaty (1992) transformed the EEC into the European Union (EU), adding political and monetary union to the economic one and creating EU citizenship. - The single currency, the euro, was introduced for accounting in 1999 and as notes and coins on January 1, 2002, replacing national currencies (the franc, the mark, the lira) in most member states.
Meanwhile the Community kept widening as well as deepening: Britain joined in 1973 (after France's de Gaulle had twice vetoed it in the 1960s), and after the Cold War the EU expanded eastward, admitting former communist states in 2004.
Connections (forward): This widening and deepening sets up the contemporary debates of Lesson 25 — the strains of a 27-member union, the 2004 eastern enlargement, the euro crisis, and Britain's eventual departure (Brexit).
Integration rode a wave of astonishing prosperity. The 1950s and 1960s were the Trente Glorieuses — three decades of booming growth, fueled at first by the American Marshall Plan (Lesson 23). West Germany's recovery was so spectacular it was called the economic miracle (Wirtschaftswunder) — engineered by economics minister Ludwig Erhard under Chancellor Konrad Adenauer, turning a bombed-out ruin into Europe's industrial powerhouse. Across Western Europe governments built the welfare state — national health care, pensions, unemployment insurance, public housing — a social contract that, alongside democracy and prosperity, helped inoculate the West against the extremism that had wrecked the interwar years (Lesson 21).
But integration carried unresolved tensions. Pooling sovereignty meant surrendering some national control to supranational institutions in Brussels — a perpetual source of friction between those who wanted "ever closer union" and those who guarded the nation-state. And decolonization left its own legacy: as former colonial subjects migrated to the old metropoles — South Asians and West Indians to Britain, North and West Africans to France — postwar Europe became more multicultural, reshaping its societies and seeding debates over immigration and identity that still rage today.
Source: The Schuman Declaration, delivered by French Foreign Minister Robert Schuman, Paris, May 9, 1950. [Authentic and foundational; the text below uses widely published English translations of the original French. Exact wording varies by translation — flag for reviewers against the official EU text.]
"Europe will not be made all at once, or according to a single plan. It will be built through concrete achievements which first create a de facto solidarity. The coming together of the nations of Europe requires the elimination of the age-old opposition of France and Germany.... The pooling of coal and steel production should immediately provide for the setting up of common foundations for economic development as a first step in the federation of Europe.... The solidarity in production thus established will make it plain that any war between France and Germany becomes not merely unthinkable, but materially impossible."
HAPPY analysis: - Historical context: Delivered in 1950 — five years after a war that had devastated Europe, with Franco-German hostility centuries deep, and amid an intensifying Cold War that made a strong, stable Western Europe newly urgent. - Audience: The French and West German governments above all (the declaration explicitly invites Germany to join), other European states, and the watching Americans who wanted a recovered, integrated Western Europe. - Purpose: To propose a concrete first step toward integration — and, openly, to make another Franco-German war impossible by fusing the industries of war under shared control. - Point of view: Schuman, a statesman from the contested Franco-German borderland of Lorraine, speaking for a France seeking security through partnership rather than the punitive approach that had failed after 1919. - whY it matters: This is the founding document of European integration — the intellectual seed of the ECSC, the EEC, and ultimately the EU. Its method ("concrete achievements," "step by step") defines how integration actually proceeded: economics first, politics following.
What caused decolonization? No single factor; the AP exam rewards a layered answer. The long-term cause was the rise of colonial nationalism and the global spread of the principle of self-determination. The decisive accelerant was the Second World War, which exhausted the imperial powers financially and militarily, shattered the myth of European invincibility (Japan's 1942 victories), and discredited racial hierarchy after a war against Nazism. The enabling context was the Cold War: both superpowers were anti-colonial, and neither would prop up the old empires. The trigger in each case was a determined independence movement — Congress in India, the FLN in Algeria — that made continued rule too costly to sustain.
Compare integration and decolonization — Europe turning inward as it let go abroad. The two processes ran simultaneously and were linked. As Europe lost its global empires, it could no longer pretend to be a collection of world powers; security and prosperity now had to be found within Europe rather than across the seas. France, humiliated at Suez and bleeding in Algeria, became a leading architect of the EEC; Britain, after Suez, turned (slowly) from empire toward Europe. Both projects responded to the same fact — Europe's diminished place in a superpower world — but in opposite directions: decolonization was the contraction of European power outward, while integration was its consolidation inward. One let go of foreign subjects ruled by force; the other bound former enemies by consent. Together they remade Europe from a cluster of imperial rivals into a continent-sized community.
The ECSC → EEC → EU sequence and its dates. Keep the chain straight and in order: ECSC (1951), founded by the Treaty of Paris after the Schuman Declaration (1950); EEC / Common Market (1957), founded by the Treaty of Rome; EU (1992), founded by the Maastricht Treaty; then the euro as physical currency in 2002. A common error is to credit the "Treaty of Rome" with creating the European Union — it created the EEC. The EU is a creature of Maastricht (1992). And do not confuse the euro (the currency) with the EU (the union): they are not the same, and several EU members do not use the euro.
Suez (1956) vs. the Algerian War (1954–62). Both involved France and decolonization, so students blur them. Suez was a short crisis in 1956 over the Egyptian canal, in which Britain and France (with Israel) invaded and were forced to withdraw by American and Soviet pressure — a symbolic humiliation. The Algerian War was a long, brutal war of independence (1954–1962) fought by France alone, which toppled the Fourth Republic and brought de Gaulle to power. Suez = Britain + France, Egypt, 1956, fast humiliation. Algeria = France, long war, regime change at home.
Integration's economic vs. political motives. Don't reduce European integration to mere free trade. The economics (a customs union, the Common Market) were real, but the founding purpose was political and strategic: to make another Franco-German war impossible by binding the enemies together. As Schuman's method shows, the founders pursued political peace through economic means — "concrete achievements" first, federation later.
Stimulus for Questions 13–14. Read the excerpt.
"Europe will not be made all at once, or according to a single plan. It will be built through concrete achievements which first create a de facto solidarity.... The solidarity in production thus established will make it plain that any war between France and Germany becomes not merely unthinkable, but materially impossible." — Robert Schuman, the Schuman Declaration, May 9, 1950 [authentic; translation wording varies — verify against the official text]
Stimulus for Questions 15–16. Study the table of European integration milestones.
| Year | Development | Institution / Result |
|---|---|---|
| 1950 | Schuman Declaration | Proposal to pool coal & steel |
| 1951 | Treaty of Paris | European Coal and Steel Community (ECSC) |
| 1957 | Treaty of Rome | European Economic Community (EEC) |
| 1992 | Maastricht Treaty | European Union (EU) |
| 2002 | Euro notes and coins | Single currency in circulation |
[Dates are standard; verify against scholarly sources.]
Stimulus for Question 17. Read the excerpt.
"The wind of change is blowing through this continent, and whether we like it or not, this growth of national consciousness is a political fact. We must all accept it as a fact, and our national policies must take account of it." — British Prime Minister Harold Macmillan, "Wind of Change" speech, Cape Town, February 1960 [authentic; verify exact wording against the published text]
LEQ Rubric (6 points total) — see the table and scoring notes in section (g). Award: 1 for a defensible thesis that ranks causes with a line of reasoning; 1 for developed contextualization (two world wars rooted in Franco-German enmity; the failed 1919 settlement); 2 for evidence (specific examples — Schuman Declaration, ECSC, Treaty of Rome, Maastricht — and their use to support the causal argument); 2 for analysis and reasoning (explaining why the Franco-German peace motive outweighed economics and the Cold War, plus a complex argument — e.g., that economic integration was the means to a political end, or that NATO already supplied external defense). A model essay argues that postwar recovery and Cold War security pushed Western Europe together, but the decisive, founding aim was to make another Franco-German war impossible by fusing the two economies — the goal that shaped integration from the Schuman Declaration of 1950 to the European Union of 1992.
Prompt: Evaluate the most important cause of the movement toward European integration in the decades after the Second World War.
(This is a causation LEQ. On the real exam you would choose this from three options and have ~40 minutes. Aim for a defensible thesis that ranks or weighs causes, developed contextualization, specific evidence, and analysis that explains causal relationships — not a list.)
Although postwar economic recovery and Cold War security needs both pushed Western European states together, the decisive cause of integration was the determination to make another Franco-German war impossible — a political goal pursued through economic means, beginning with the pooling of coal and steel in 1951 and culminating in the European Union of 1992.
This thesis is strong because it takes a rankable position (the Franco-German peace motive was most important), acknowledges other causes (economic recovery, the Cold War), and establishes a line of causal reasoning (peace goal → economic pooling → ever-deeper union).
Contextualization (one paragraph): The Second World War (Lesson 22) had devastated Europe for the second time in thirty years, with Franco-German enmity at the core of both conflicts; the punitive post-1919 settlement (the Treaty of Versailles) had failed to secure peace, and a new Cold War (Lesson 23) made a stable, recovered Western Europe urgent.
Body 1 — The decisive cause: making Franco-German war impossible (political peace through economics): - The Schuman Declaration (May 9, 1950), drawing on Jean Monnet's plan, explicitly aimed to make war between France and Germany "not merely unthinkable, but materially impossible" by pooling the very industries of war. - This produced the European Coal and Steel Community (1951, Treaty of Paris) among the Inner Six (France, West Germany, Italy, Belgium, the Netherlands, Luxembourg). - The method — "concrete achievements" first, federation later — explains the gradual deepening to the EEC (Treaty of Rome, 1957) and the EU (Maastricht, 1992).
Body 2 — Economic recovery and prosperity (a powerful contributing cause): - The Marshall Plan and the postwar boom (the Trente Glorieuses, West Germany's Wirtschaftswunder) made cooperation attractive and successful. - The Common Market removed tariffs and boosted trade — but note: the economics served the political end, not the reverse (the analytical heart of the essay).
Body 3 — Cold War pressure (the enabling context): - The Soviet threat and the division of Europe (Lesson 23) gave Western states a powerful incentive to unite, and the United States actively encouraged integration as a bulwark against communism. - But note the counter-reasoning: NATO already provided military security, so integration's deeper purpose was the internal one — binding old enemies together — not merely external defense.
Conclusion: Restate the ranking — economic recovery and Cold War security mattered, but the indispensable, founding aim was to end Franco-German war by fusing the two nations' economies; that goal shaped integration's distinctive method and trajectory from 1950 to Maastricht.
| Rubric Category | Points | What earns the point here |
|---|---|---|
| A. Thesis / Claim | 1 | A historically defensible thesis with a line of reasoning. The model earns it by ranking causes (Franco-German peace as most important) rather than listing them. |
| B. Contextualization | 1 | Describes a broader relevant context — e.g., two world wars rooted in Franco-German enmity and the failure of the 1919 settlement. Must be a developed sentence or two, not a passing phrase. |
| C. Evidence | 2 | +1 for at least two specific, accurate examples (e.g., the Schuman Declaration, the ECSC/Treaty of Paris, the Treaty of Rome, Maastricht, the Inner Six). +1 for using that evidence to support the argument about causation. |
| D. Analysis & Reasoning | 2 | +1 for using the targeted skill — causation — to explain why the peace motive outweighed economics and the Cold War. +1 (complexity) for a nuanced argument: e.g., showing that economic integration was the means to a political end, or that NATO already supplied defense, isolating the internal Franco-German purpose. |
Total: 6 points.
MCQ Solutions
LEQ Rubric (6 points total) — see the table and scoring notes in section (g). Award: 1 for a defensible thesis that ranks causes with a line of reasoning; 1 for developed contextualization (two world wars rooted in Franco-German enmity; the failed 1919 settlement); 2 for evidence (specific examples — Schuman Declaration, ECSC, Treaty of Rome, Maastricht — and their use to support the causal argument); 2 for analysis and reasoning (explaining why the Franco-German peace motive outweighed economics and the Cold War, plus a complex argument — e.g., that economic integration was the means to a political end, or that NATO already supplied external defense). A model essay argues that postwar recovery and Cold War security pushed Western Europe together, but the decisive, founding aim was to make another Franco-German war impossible by fusing the two economies — the goal that shaped integration from the Schuman Declaration of 1950 to the European Union of 1992.
EuroIQ · Lesson 24 of 25 · Period 4 · Unit 9: The Cold War, Decolonization, and European Integration
This lesson is exam-prep study material aligned to the AP® European History Course and Exam Description. AP® is a trademark registered by the College Board, which is not affiliated with and does not endorse this product. Colonialism, partition violence, and the wars of decolonization are presented here as historical phenomena to be analyzed and critically understood. Dates, attributions, and translations are drawn from standard scholarly sources; readers should consult primary editions for exact wording.
Content pending external history review.