The 20th century witnessed the end of European imperial dominance over large parts of Asia, Africa, and the Middle East. While calls for national self-determination began after World War I, it wasnât until after World War IIâwith European nations financially and militarily weakenedâthat widespread decolonization occurred. The Cold War further accelerated this process, as both the United States and the Soviet Union encouraged the dismantling of old colonial empires, often for their own strategic interests.
The Promise (and Betrayal) of Self-Determination
At the close of World War I, U.S. President Woodrow Wilsonâs Fourteen Points emphasized national self-determinationâthe idea that nations had a right to choose their own governments. However, this principle was applied selectively. Non-European peoples expected freedom but were often denied independence, especially in strategic or economically valuable regions.
â Self-Determination: The principle that a nation has the right to choose its own political status without external influence. After WWI, colonized nations hoped this meant independence, but imperial powers often resisted.
Despite growing nationalist movements across Africa and Asia, colonial empires largely remained intact through the 1920s and 1930s. It would take the devastation of WWII to begin dismantling these systems.

World War II and the Collapse of Empire
After 1945, Europe was no longer capable of maintaining vast colonial holdings:
- Economic exhaustion made overseas governance unsustainable.
- Cold War rivalries encouraged new nations to align with either the U.S. or USSR.
- Anticolonial movements and guerrilla resistance gained momentum, often fueled by returning WWII veterans.
- Moral pressure from the United Nations and new superpowers made colonization appear outdated and hypocritical.
â Decolonization: The process by which former colonies gained independence from imperial powers. This could occur peacefully through negotiation or violently through revolution and war.
Case Studies in Decolonization
Some empires negotiated peaceful exits; others clung to their colonies, sparking brutal wars. Here's a selection of important decolonization events:
| Colony | Imperial Power | Year of Independence | Method of Decolonization |
|---|---|---|---|
| India | United Kingdom | 1947 | Peaceful transition; Gandhi's movement |
| Philippines | United States | 1946 | Negotiated post-war independence |
| Vietnam | France | 1945 (unofficial), 1954 (formal) | Armed conflict, First Indochina War |
| Algeria | France | 1962 | Violent revolution, FLN resistance |
| Democratic Republic of the Congo | Belgium | 1960 | Sudden withdrawal; instability |
| Ghana | United Kingdom | 1957 | Peaceful political transition |
| Kenya | United Kingdom | 1963 | Mau Mau Uprising, violent conflict |
| Angola / Mozambique | Portugal | 1975 | War for independence |
| Indonesia | Netherlands | 1949 | Armed resistance (after Japanese withdrawal) |
The Role of the Cold War
Decolonization occurred within the broader context of Cold War rivalry:
- The United States often supported anticommunist regimes, even if they were authoritarian.
- The Soviet Union backed revolutionary and Marxist independence movements.
- New nations were often pressured into aligning with one superpower or the other, which sometimes delayed true autonomy.
Challenges Facing New Nations
Although formal imperialism ended, the legacy of colonial rule continued to shape newly independent nations.
Post-Independence Struggles Included:
- Artificial borders drawn by colonial powers that ignored ethnic, tribal, or religious divisions
- Economic dependency on former colonial powers
- Civil wars and coups due to weak institutions
- Neo-colonialism, where European and American companies retained control over key resources
â Neo-Colonialism: A term describing how former colonial powers continued to exert control through economic, cultural, and political pressures, rather than direct governance.
Conclusion: A Century of Change and Conflict
Decolonization redefined the relationship between Europe and the rest of the world. It dismantled centuries-old empires, inspired national identity movements, and created a new global order. However, independence did not guarantee stability or prosperityâmany former colonies continue to grapple with the legacy of imperialism today.
Vocabulary
The following words are mentioned explicitly in the College Board Course and Exam Description for this topic.Term | Definition |
|---|---|
Cold War strategic alignments | The geopolitical positioning of nations during the Cold War that influenced the timing and process of decolonization in various territories. |
decolonization | The process by which colonial territories gained independence from European imperial powers during the 20th and 21st centuries. |
Indian National Congress | A major political organization in India that led the independence movement against British colonial rule. |
Indonesian nationalism | The nationalist movement led by Sukarno that sought independence for Indonesia from Dutch colonial rule. |
National Liberation Front (FLN) | The Algerian independence movement that fought against French colonial control. |
national self-determination | The principle that peoples have the right to determine their own political status and form of government, promoted by Woodrow Wilson after World War I. |
nationalist movements | Political movements driven by the desire of people sharing a common identity, language, or culture to establish independent nation-states or assert national sovereignty. |
Viet Minh | Ho Chi Minh's Vietnamese independence movement that fought against French and later American colonial and military presence. |
Frequently Asked Questions
What is decolonization and when did it happen?
Decolonization is the process by which colonies gained independence from European imperial powersâpolitical, economic, and social control shifted from foreign rulers to indigenous leaders. In the AP CED itâs framed as a 20thâ21st century development that unfolded unevenly: some places (like India in 1947) achieved independence soon after WWII, while many African and Asian territories didnât gain freedom until the mid- or late-20th century because imperial powers resisted, local economies/politics were unstable, and Cold War rivalries complicated outcomes (CED KC-4.1.VI). Decolonization happened through a mix of peaceful negotiation, nationalist movements (Indian National Congress, Sukarno, Pan-African leaders), and armed struggles (FLN in Algeria, Viet Minh). Key concepts: neocolonialism, Bandung/Non-Aligned Movement, Partition of India, Suez Crisis, Mau Mau, Kwame Nkrumah, Patrice Lumumba. For AP prep, this topic appears in Unit 9 questions testing âdevelopments and processesâ (short answers, DBQs/LEQs). Review the Topic 9.9 study guide (https://library.fiveable.me/ap-european-history/unit-9/decolonization/study-guide/yfdRP1jwcXAOuMTqFrJ1), the Unit 9 overview (https://library.fiveable.me/ap-european-history/unit-9), and practice problems (https://library.fiveable.me/practice/ap-european-history).
Why did European countries finally give up their colonies after World War II?
After WWII European powers finally let go because they were weakenedâmilitarily and economicallyâand couldnât sustain expensive empires. Strong indigenous nationalist movements (Indian National Congress, Viet Minh, FLN) used mass politics, guerrilla resistance, and international law (self-determination) to press for independence. The U.S. and USSR, plus the UN, pressured decolonization for strategic and rhetorical reasons during the Cold War, and global opinion shifted after the Holocaust and war horrors. Costly military responses (e.g., Suez Crisis showed limits of British/French power) and the expense of rebuilding at home made colonial rule less practical. France, Britain, and the Netherlands faced both violent and negotiated endings (Algeria vs. Indian and Indonesian independence). For AP work, use specific examples and connect causes (economic strain, nationalist resistance, Cold War politics) for strong contextualization and causation in LEQs/DBQs. See the Topic 9.9 study guide (https://library.fiveable.me/ap-european-history/unit-9/decolonization/study-guide/yfdRP1jwcXAOuMTqFrJ1), the Unit 9 overview (https://library.fiveable.me/ap-european-history/unit-9), and practice questions (https://library.fiveable.me/practice/ap-european-history).
What's the difference between how India and Algeria got independence?
Short answer: India and Algeria achieved independence very differently. Indiaâs independence (1947) grew from decades of mass nationalist organizing led by the Indian National Congress, large-scale civil disobedience (e.g., Gandhiâs campaigns), and negotiation with Britain after World War II. It ended with a largely political settlement but also a traumatic Partition into India and Pakistan (mass migration and communal violence). Algeriaâs independence (1962) was won after a prolonged, brutal guerrilla war led by the National Liberation Front (FLN) against France, marked by widespread fighting, terrorism, and harsh French repressionâincluding conflict over large European settler communitiesâforcing a military and political exit rather than a negotiated decolonization like Britainâs. These examples show KC-4.1.VI: decolonization varied from negotiated/partly cooperative (India) to violent/resistant (Algeria). For more review, see the Topic 9.9 study guide (https://library.fiveable.me/ap-european-history/unit-9/decolonization/study-guide/yfdRP1jwcXAOuMTqFrJ1) and Unit 9 overview (https://library.fiveable.me/ap-european-history/unit-9). Practice questions: (https://library.fiveable.me/practice/ap-european-history).
Can someone explain Woodrow Wilson's self-determination principle in simple terms?
Wilson's principle of self-determination basically said that people who share a common language, culture, or history should be able to choose their own government instead of being ruled by outsiders. After WWI, that idea raised hopes in colonized Africa, Asia, and the Middle East that empires would grant independence or new rights (CED KC-4.1.VI.A). In practice, Wilsonâs idea was applied unevenlyâEuropeans kept many colonies, and strategic/imperial interests often overrode those promisesâso self-determination helped spark nationalist movements but didnât immediately end colonial rule (CED KC-4.1.VI.C). On the AP exam, know it as a World War Iâera cause that raised expectations for decolonization and appears in short-answer and essay prompts about nationalism and independence. For a quick review, see the Topic 9.9 study guide (https://library.fiveable.me/ap-european-history/unit-9/decolonization/study-guide/yfdRP1jwcXAOuMTqFrJ1) and try practice questions (https://library.fiveable.me/practice/ap-european-history).
How did the Indian National Congress help India become independent?
The Indian National Congress (INC) led and organized the main nationalist movement that pushed Britain to leave India. Starting as an elite political group, it broadened into a mass movement by the 1920s under leaders like Gandhi and Nehru. The INC used petitions, elections, noncooperation, civil disobedience (e.g., Salt March), and coordinated strikes to show Britain it couldnât effectively govern without Indian consent. During WWII the INCâs Quit India campaign and postwar elections demonstrated popular demand for self-rule; combined with Britain's weakened postwar economy and global pressure for decolonization, that made transfer of power politically necessary. The INC also negotiated the terms of independence and governance, though partition and communal violence complicated the outcome (Partition of India). For AP use: INC is a key example of indigenous nationalist movements in Topic 9.9 and appears well as evidence in DBQs/LEQs (see the Topic 9.9 study guide: https://library.fiveable.me/ap-european-history/unit-9/decolonization/study-guide/yfdRP1jwcXAOuMTqFrJ1). For extra practice, check Fiveableâs AP problems (https://library.fiveable.me/practice/ap-european-history).
What was Algeria's FLN and why were they so violent against France?
The FLN (Front de LibĂ©ration Nationale) was Algeriaâs main independence movement (Algerian National Liberation Front). Formed in 1954, it led an organized anti-colonial campaign using guerrilla warfare, urban bombings, and assassination of colonial collaborators to force France to negotiate. Their violence arose from long-term political exclusion, land and economic inequality, and Franceâs refusal to grant meaningful reformsâplus brutal French repression (mass arrests, torture, collective punishments) that escalated the conflict into a cycle of violence. The FLN also aimed to internationalize Algeriaâs struggle to win diplomatic support, which helped produce independence in 1962. On the AP exam, Algeria is an illustrative example of KC-4.1.VI (decolonization with violent resistance); you might use it in a short-answer, DBQ, or LEQ about nationalist movements and varied paths to independence. For more review, see the Topic 9.9 study guide (https://library.fiveable.me/ap-european-history/unit-9/decolonization/study-guide/yfdRP1jwcXAOuMTqFrJ1) and Unit 9 overview (https://library.fiveable.me/ap-european-history/unit-9). Practice questions: (https://library.fiveable.me/practice/ap-european-history).
Who was Ho Chi Minh and how did he fight against French colonialism?
Ho Chi Minh was the Vietnamese nationalist and Communist leader who founded the Viet Minh in 1941 to resist French colonial rule and to push for Vietnamese independence. He combined Marxist political organization and strong appeals to national self-determination (a key CED concept) to build mass support among peasants and intellectuals. Militarily and politically, the Viet Minh used prolonged guerrilla-style warfare, mobilized local populations, and tied their cause to anti-colonial legitimacy. Their sustained campaign culminated in the 1954 engagement at Dien Bien Phu, which precipitated Franceâs withdrawal and the Geneva Accords that partitioned Vietnam. Ho Chi Minh and the Viet Minh are an AP CED illustrative example of indigenous nationalist movements (like the FLN or INC) and fit well in SAQ/DBQ evidence about decolonization, Cold War alignments, and the limits of European imperialism. For a quick topic review, see the Topic 9.9 study guide (https://library.fiveable.me/ap-european-history/unit-9/decolonization/study-guide/yfdRP1jwcXAOuMTqFrJ1) and more unit resources (https://library.fiveable.me/ap-european-history/unit-9). Practice questions: (https://library.fiveable.me/practice/ap-european-history).
I'm confused about why decolonization took so long if people wanted independence - what held it back?
Good questionâdecolonization took decades because wanting independence wasnât enough: European powers were reluctant to give up political control and valuable resources, and they often had the military, legal, and economic means to delay it. Colonial regimes used repression, co-optation, and gradual reform; settler colonies (Algeria, Kenyaâs Mau Mau) were especially hard to unwind. Weak or divided local institutions, ethnic divisions, and dependency on colonial economies made stable post-independence transitions risky. The Cold War also slowed or shaped outcomes: the US and USSR sometimes backed or blocked movements for strategic reasons, turning independence into a geopolitical contest. Finally, some independence came through negotiation and phased transfers (India), others through long wars (Vietnam)âso timing varied. For AP prep, focus on cause-and-effect and specific examples (INC, FLN, Viet Minh, Bandung). See the Topic 9.9 study guide for concise review (https://library.fiveable.me/ap-european-history/unit-9/decolonization/study-guide/yfdRP1jwcXAOuMTqFrJ1) and practice questions (https://library.fiveable.me/practice/ap-european-history).
How did the Cold War affect which countries got independence and when?
Cold War rivalry shaped when and how colonies won independence because the US and USSR treated decolonization as a strategic question. Colonies valuable for bases, resources, or influence often saw delayed or violent transitions (French Indochina â prolonged conflict; Algeriaâs FLN vs. France). Superpowers funded or backed local nationalists or pro-Western regimes, turning many struggles into proxy conflicts (Viet Minh, FLN, support for Kwame Nkrumah or, later, interventions around Congo/Patrice Lumumba). Where European powers were weakened after WWII (India, 1947), independence came faster. Many new states tried to avoid Cold War alignmentâBandung (1955) and the Non-Aligned Movement show that. For AP essays, use specific examples (India, Vietnam, Algeria, Bandung) to support causation and change-over-time arguments. For a quick topic review, see the unit 9 decolonization study guide (https://library.fiveable.me/ap-european-history/unit-9/decolonization/study-guide/yfdRP1jwcXAOuMTqFrJ1), the full Unit 9 overview (https://library.fiveable.me/ap-european-history/unit-9), and practice questions (https://library.fiveable.me/practice/ap-european-history).
What role did World War I play in starting independence movements?
World War I helped start independence movements mainly by changing ideas and weakening European empires. President Woodrow Wilsonâs call for ânational self-determinationâ raised expectations in colonies that they, too, deserved nationhoodâa key CED point. The war also drained European resources, damaged prestige, and left colonial troops and leaders (like those who later joined movements such as the Indian National Congress or Ho Chi Minhâs Viet Minh) with military experience and new political confidence. Finally, wartime promises and broken postwar hopes fueled anger and organized resistance; imperial powers often delayed independence (another CED point), which turned peaceful nationalist efforts into longer struggles. For AP prep, connect this to Topic 9.9âs LO: explain how colonial groups sought independence (political organizing, armed resistance, diplomacy) and use specific examples (India, Vietnam, Indonesia). For a focused review, check the Topic 9.9 study guide (https://library.fiveable.me/ap-european-history/unit-9/decolonization/study-guide/yfdRP1jwcXAOuMTqFrJ1) and practice questions (https://library.fiveable.me/practice/ap-european-history).
Why did some African countries not get independence until the 1960s and 70s?
Many African countries didnât gain independence until the 1960sâ70s because decolonization wasnât a single event but a slow process shaped by politics, economics, and the Cold War. European powers were often reluctant to give up valuable colonies, especially where settlers or resources were important (e.g., French Algeriaâs war until 1962). Nationalist movements sometimes faced violent suppression or needed long guerrilla campaigns (FLN in Algeria, Mau Mau in Kenya). Cold War rivalry also delayed some transfersâWestern powers feared instability or communist influence and sometimes backed friendly elites, producing slow, negotiated transitions or neocolonial ties. Weak local institutions and economic dependency made immediate self-rule risky, so imperial states stalled to protect strategic interests. For AP review, link these causes to KC-4.1.VI in Unit 9 and practice applying them in short-answer/LEQ/DBQ prompts (see the Topic 9.9 study guide: https://library.fiveable.me/ap-european-history/unit-9/decolonization/study-guide/yfdRP1jwcXAOuMTqFrJ1). For extra practice, try problems at (https://library.fiveable.me/practice/ap-european-history).
How do I write a DBQ essay about the different methods colonies used to gain independence?
Start your DBQ with a clear thesis that answers how colonies gained independence (e.g., âColonies used violent revolution, negotiated transfer, and international diplomacyâbut the mix depended on metropolitan response and Cold War pressuresâ). Contextualize briefly: postâWWI self-determination, WWII weakening of empires, Cold War alignments (CED Topic 9.9). Use at least four documents to support distinct methods: armed insurgency (FLN, Viet Minh, Mau Mau), political negotiation/legal routes (Indian National Congress, Partition of India), international pressure/Crises (Suez Crisis, Bandung/Non-Aligned Movement), and postcolonial neocolonial challenges (Nkrumah, Lumumba). Bring one outside fact (e.g., 1947 Indian independence or 1954 Dien Bien Phu) and source two documents (author, purpose, audience) to show bias. End by showing complexityâcompare causes/effects or change over time (violent to diplomatic). For Topic 9.9 review, use the Fiveable study guide (https://library.fiveable.me/ap-european-history/unit-9/decolonization/study-guide/yfdRP1jwcXAOuMTqFrJ1) and Unit 9 overview (https://library.fiveable.me/ap-european-history/unit-9). Practice DBQs and docs at https://library.fiveable.me/practice/ap-european-history.
What were the main consequences of decolonization for both the colonies and European powers?
Decolonization reshaped both former colonies and European powers. For colonies: political independence often came with violence (e.g., Algeriaâs FLN, Partition of India), fragile institutions, and economic dependenceâthe rise of neocolonialism and Cold War alignments (Viet Minh, Bandung/Non-Aligned Movement). It also spurred nationalism, new states, and movements for pan-Africanism (Kwame Nkrumah, Patrice Lumumba). For European powers: loss of empires reduced global political/economic reach, provoked crises (Suez Crisis), domestic debates over immigration and identity, and sped postwar economic/decolonization adjustments. Long term, Europe faced diminished imperial prestige but also fewer overseas commitments, affecting Cold War strategy. On the AP exam, you might use these consequences as evidence in a short-answer, DBQ, or LEQâconnect specific examples (India, Algeria, Suez) to themes like national self-determination, neocolonialism, and Cold War interference. Review Topic 9.9 for examples (https://library.fiveable.me/ap-european-history/unit-9/decolonization/study-guide/yfdRP1jwcXAOuMTqFrJ1), unit overview (https://library.fiveable.me/ap-european-history/unit-9), and practice Qs (https://library.fiveable.me/practice/ap-european-history).
Did economic problems in Europe after WWII make them give up colonies faster?
Short answer: Yesâeconomic problems after WWII sped up decolonization, but they werenât the only cause. Why: European states were shattered economically (reconstruction costs, loss of manpower), so maintaining costly overseas empires became harder. Public opinion and budgets prioritized rebuilding, while the US and USSR pressured European powers to decolonize (or at least avoid overt colonial repression) for Cold War legitimacy. Combined with stronger indigenous nationalist movements (Indian National Congress, Viet Minh, FLN) and events like the 1956 Suez Crisis, many European powers lost the political will or resources to hold colonies. Still, some metrenchment occurred (e.g., French Algeria), showing economics mattered alongside politics, ideology, and military resistance. For AP prep: this fits KC-4.1.VI about varying decolonization paths and the CED examples (India, Viet Minh, FLN, Suez Crisis). For more review, see the Topic 9.9 study guide (https://library.fiveable.me/ap-european-history/unit-9/decolonization/study-guide/yfdRP1jwcXAOuMTqFrJ1) and unit overview (https://library.fiveable.me/ap-european-history/unit-9). Practice questions are at (https://library.fiveable.me/practice/ap-european-history).
I missed class - what's the connection between nationalism and decolonization movements?
Nationalism gave decolonization its central energy: colonized peoples began to see themselves as distinct nations with a right to self-rule, not just subjects of European empires. Leaders and movements (Indian National Congress, Ho Chi Minhâs Viet Minh, FLN in Algeria, Sukarno in Indonesia) used national identity, mass mobilization, and claims to self-determination (echoing Wilsonâs postâWWI ideas) to demand independence. Nationalism also shaped methodsâsometimes peaceful (negotiation, political organizing), sometimes violent (insurgency, uprisings like Mau Mau or Algerian warfare)âand influenced international responses during the Cold War (strategic alignments, delayed independence). For the AP exam, connect nationalism to KC-4.1.VI (varied cooperation/resistance) and use examples in SAQs/LEQs/DBQs to show causation and change over time. For a quick review, see the Topic 9.9 study guide (https://library.fiveable.me/ap-european-history/unit-9/decolonization/study-guide/yfdRP1jwcXAOuMTqFrJ1) and practice questions (https://library.fiveable.me/practice/ap-european-history) to drill evidence and contextualization.