Decolonisation was the historical process by which European colonies in Asia, Africa, and Oceania achieved independence from their colonial rulers. This process took place mainly between 1945 (the end of World War II) and the mid-1970s. It radically changed the world political map and marked the end of the great European empires (British, French, Portuguese, Belgian, and Dutch).
Several factors explain why decolonisation happened so quickly after 1945:
Weakness of European powers: After WWII, Britain, France, the Netherlands, and other colonial powers were economically exhausted and militarily weakened.
Rise of nationalist movements: In the colonies, educated local leaders (such as Mahatma Gandhi, Ho Chi Minh, Gamal Abdel Nasser, and Jomo Kenyatta) organised movements demanding independence.
Role of the United Nations (UN): The UN Charter defended the right to self-determination of all peoples, putting moral pressure on colonial powers.
The Cold War: Both the USA and the USSR opposed old European colonialism (though for different reasons). They often supported independence movements to gain influence in newly created countries.
Asia
1945–1954
– India and Pakistan independent from Britain (1947)
– Indonesia independent from the Netherlands (1949)
– Indochina (Vietnam, Laos, Cambodia) independent from France (1954)
North Africa
1954–1962
– Egypt independent from Britain (1952)
– Morocco and Tunisia independent from France (1956)
– Algerian War of Independence (1954–1962), a very violent process
Sub-Saharan Africa
1960 ("Year of Africa")
17 countries gained independence, including Nigeria, Congo, Senegal, Ivory Coast, and Cameroon.
Other regions
1960s–1970s
Caribbean islands, Pacific islands, and Portuguese colonies (Angola, Mozambique, Guinea-Bissau) gained independence later (1974–1975).
Peaceful or negotiated independence:
Examples: India (non-violent resistance led by Gandhi), Tunisia, Morocco, most British colonies in Africa.
Violent independence or war:
Examples: Algeria (bloody war against France), Kenya (Mau Mau rebellion), Indochina (war against France), Angola and Mozambique (wars against Portugal).
Political consequences:
Creation of dozens of new states. In 1945, the UN had 51 member countries; by 1970, it had 127.
Many new countries adopted unstable political systems (dictatorships, coups, one-party regimes).
Economic consequences:
Most new countries remained economically dependent on their former colonisers (a situation called neo-colonialism).
They exported raw materials (oil, copper, coffee, cocoa) and imported expensive manufactured goods.
Social and ethnic consequences:
Colonial borders had been drawn artificially, ignoring ethnic and religious groups. This caused internal conflicts and civil wars (e.g., Nigeria, Rwanda, Congo, Sudan).
In some places, settlers of European origin remained, causing tensions (e.g., Rhodesia/Zimbabwe, South Africa with apartheid).
Cultural consequences:
Recovery of local languages, religions, and traditions.
Creation of new national identities.
Cold War consequences:
New countries became battlegrounds for influence between the USA and the USSR (e.g., Vietnam War, Congo Crisis, Angola Civil War).
India (1947):
Peaceful movement led by Gandhi.
Partition into India (Hindu-majority) and Pakistan (Muslim-majority) caused mass migration and violence.
Algeria (1954–1962):
Very brutal war against France.
Over one million Algerians died.
France almost suffered a military coup.
Congo (1960):
Independence from Belgium was chaotic.
Patrice Lumumba, the first prime minister, was assassinated.
The country fell into civil war and dictatorship (Mobutu).
Decolonisation
Process of colonies becoming independent
Self-determination
Right of a people to choose their own government
Nationalist movement
Organisation fighting for independence
Metropole / Colonial power
The European country that ruled the colony
Neo-colonialism
Continuing economic control after independence
Partition
Division of a territory into separate states
Settlers
Europeans who moved permanently to the colony