Decolonization is the ending of colonialism, the latter being the process whereby imperial nations establish and dominate foreign territories, often overseas. The meanings and applications of the term are disputed. Some scholars of decolonization focus especially on independence movements in the colonies and the collapse of global colonial empires.
As a movement to establish independence for colonized territories from their respective metropoles, decolonization began in 1775 with the American Revolution in North America against the British Empire. The Napoleonic Wars in the 19th century saw the French colonial empire, the Spanish Empire, and Portugal face decolonization with the Haitian Revolution, the Spanish American wars of independence, and the independence of Brazil from Portugal. A major wave of decolonization occurred in the aftermath of the First World War, including in the United States and the Empire of Japan. Another wave of decolonization occurred after the Second World War, and many countries gained their independence in the following years. The last wave of decolonization occurred after the Cold War with the collapse of the Soviet Union, the independence of Palau, and the handovers of Hong Kong and Macau. Seventeen territories remain under the United Nations classification of non-self-governing territories.
Scope
According to David Strang, decolonization is achieved through the attainment of sovereign statehood with de jure recognition by the international community or through full incorporation into an existing sovereign state.
The United Nations (UN) states that the fundamental right to self-determination is the core requirement for decolonization, and that this right can be exercised with or without political independence. A UN General Assembly Resolution in 1960 characterised colonial foreign rule as a violation of human rights. In states that have won independence, Indigenous people living under settler colonialism continue to make demands for decolonization and self-determination.
Although discussions of hegemony and power, central to the concept of decolonization, can be found as early as the writings of Thucydides, there have been several particularly active periods of decolonization in times. These include the decolonization of Africa, the breakup of the Spanish in the 19th century; of the German, Austro-Hungarian, Ottoman, and Russian Empires following World War I; of the British, French, Dutch, Portuguese, Belgian, Italian, and Japanese Empires following World War II; and of the Soviet Union at the end of the Cold War.
Reading level
Audio Summary
Played with your browser's voice. Studio-quality audio can be added with a text-to-speech service.
Ask about this article
📝 Quick Quiz1 / 3
What is "Decolonization" primarily known for?
Vocix Daily — In Your Inbox
Top stories, deep-dive articles, and "On This Day" history — one crisp digest delivered every morning.
Sources & references
Reference material for this entry is drawn from the open encyclopedic record, including Wikipedia , available under the CC BY-SA 4.0 license. Images are credited individually beside each photo.
Early studies of decolonisation appeared in the 1960s and 1970s. An important book from this period was The Wretched of the Earth (1961) by Martiniquan author Frantz Fanon, which established many aspects of decolonisation that would be considered in later works. Subsequent studies of decolonisation addressed economic disparities as a legacy of colonialism as well as the annihilation of people's cultures. Ngũgĩ wa Thiong'o explored the cultural and linguistic legacies of colonialism in the influential book Decolonising the Mind (1986).
"Decolonization" has also been used to refer to the intellectual decolonization from the colonizers' ideas that made the colonized feel inferior. Issues of decolonization persist and are raised contemporarily. In the Americas and South Africa, such issues are increasingly discussed under the term decoloniality.
By area
In the two hundred years following the American Revolutionary War in 1783, 165 colonies have gained independence from Western imperial powers. Several analyses point to different reasons for the spread of anti-colonial political movements. Institutional arguments suggest that increasing levels of education in the colonies led to calls for popular sovereignty; Marxist analyses view decolonization as a result of economic shifts toward wage labor and an enlarged bourgeois class; yet another argument sees decolonization as a diffusion process wherein earlier revolutionary movements inspired later ones. Other explanations emphasize how the lower profitability of colonization and the costs associated with empire prompted decolonization. Some explanations emphasize how colonial powers struggled militarily against insurgents in the colonies due to a shift from 19th century conditions of "strong political will, a permissive international environment, access to local collaborators, and flexibility to pick their battles" to 20th century conditions of "apathetic publics, hostile superpowers, vanishing collaborators, and constrained options". In other words, colonial powers had more support from their own region in pursuing colonies in the 19th century than they did in the 20th century, where holding on to such colonies was often understood to be a burden.
A great deal of scholarship attributes the ideological origins of national independence movements to the Age of Enlightenment. Enlightenment social and political theories such as individualism and liberalism were central to the debates about national constitutions for newly independent countries. Contemporary decolonial scholarship has critiqued the emancipatory potential of Enlightenment thought, highlighting its erasure of Indigenous epistemologies and failure to provide subaltern and Indigenous people with liberty, equality, and dignity.
Great Britain's Thirteen North American colonies were the first to declare independence, forming the United States of America in 1776, and defeating Britain in the Revolutionary War.
Haitian Revolution
The Haitian Revolution was a revolt in 1789 and subsequent slave uprising in 1791 in the French colony of Saint-Domingue, on the Caribbean island of Hispaniola. In 1804, Haiti secured independence from France as the Empire of Haiti, which later became a republic.
Spanish America
The chaos of the Napoleonic Wars in Europe cut the direct links between Spain and its American colonies, allowing for the process of decolonization to begin.
With the invasion of Spain by Napoleon in 1806, the American colonies declared autonomy and loyalty to King Ferdinand VII. The contract was broken and each of the regions of the Spanish Empire had to decide whether to show allegiance to the Junta of Cadiz (the only territory in Spain free from Napoleon) or have a junta (assembly) of its own. The economic monopoly of the metropolis was the main reason why many countries decided to become independent from Spain. In 1809, the independence wars of Latin America began with a revolt in La Paz, Bolivia. In 1807 and 1808, the Viceroyalty of the River Plate was invaded by the British. After their 2nd defeat, a Frenchman called Santiague de Liniers was proclaimed a new Viceroy by the local population and later accepted by Spain. In May 1810 in Buenos Aires, a Junta was created, but in Montevideo it was not recognized by the local government who followed the authority of the Junta of Cadiz. The rivalry between the two cities was the main reason for the distrust between them. During the next 15 years, the Spanish and Royalist on one side, and the rebels on the other fought in South America and Mexico. Numerous countries declared their independence. In 1824, the Spanish forces were defeated in the Battle of Ayacucho. The mainland was free, and in 1898, Spain lost Cuba and Puerto Rico in the Spanish–American War. Puerto Rico became an unincorporated territory of the US, but Cuba became independent in 1902.
Portuguese America
The Napoleonic Wars also led to the severing of the direct links between Portugal and its only American colony, Brazil. Days before Napoleon invaded Portugal, in 1807 the Portuguese royal court fled to Brazil. In 1820 there was a Constitutionalist Revolution in Portugal, which led to the return of the Portuguese court to Lisbon. This led to distrust between the Portuguese and the Brazilian colonists, and finally, in 1822, to the colony becoming independent as the Empire of Brazil, which later became a republic.
British Empire
The emergence of Indigenous political parties was especially characteristic of the British Empire, which was less ruthless than, for example, Belgium, in controlling political dissent. Driven by pragmatic demands of budgets and manpower the British made deals with the local politicians. Across the empire, the general protocol was to convene a constitutional conference in London to discuss the transition to greater self-government and then independence, submit a report of the constitutional conference to parliament, if approved submit a bill to Parliament at Westminster to terminate the responsibility of the United Kingdom (with a copy of the new constitution annexed), and finally, if approved, issuance of an Order of Council fixing the exact date of independence.
After World War I, several former German and Ottoman territories in the Middle East, Africa, and the Pacific were governed by the UK as League of Nations mandates. Some were administered directly by the UK, and others by British dominions – Nauru and the Territory of New Guinea by Australia, South West Africa by the Union of South Africa, and Western Samoa by New Zealand.
Egypt became independent in 1922, although the UK retained security prerogatives, control of the Suez Canal, and effective control of the Anglo-Egyptian Sudan. The Balfour Declaration of 1926 declared the British Empire dominions as equals, and the 1931 Statute of Westminster established full legislative independence for them. The equal dominions were six– Canada, Newfoundland, Australia, the Irish Free State, New Zealand, and the Union of South Africa; Ireland had been brought into a union with Great Britain in 1801 creating the United Kingdom of Great Britain and Ireland until the formation of the Irish Free State in 1922. However, some of the Dominions were already independent de facto, and even de jure and recognized as such by the international community. Thus, Canada was a founding member of the League of Nations in 1919 and served on the council from 1927 to 1930. That country also negotiated on its own and signed bilateral and multilateral treaties and conventions from the early 1900s onward. Newfoundland ceded self-rule back to London in 1934. Iraq, a League of Nations mandate, became independent in 1932.
In response to a growing Indian independence movement, the UK made successive reforms to the British Raj, culminating in the Government of India Act 1935. These reforms included creating elected legislative councils in some of the provinces of British India. Mohandas Karamchand Gandhi, India's independence movement leader, led a peaceful resistance to British rule. By becoming a symbol of both peace and opposition to British imperialism, many Indians began to view the British as the cause of India's problems leading to a newfound sense of nationalism among its population. With this new wave of Indian nationalism, Gandhi was eventually able to garner the support needed to push back the British and create an independent India in 1947.
Africa was only fully drawn into the colonial system at the end of the 19th century. In the north-east the continued independence of the Ethiopian Empire remained a beacon of hope to pro-independence activists. However, with the anti-colonial wars of the 1900s (decade) barely over, new modernizing forms of Africa nationalism began to gain strength in the early 20th century with the emergence of Pan-Africanism, as advocated by the Jamaican journalist Marcus Garvey (1887–1940) whose widely distributed newspapers demanded swift abolition of European imperialism, as well as republicanism in Egypt. Kwame Nkrumah (1909–1972) who was inspired by the works of Garvey led the Gold Coast (Ghana) to independence from colonial rule.
Independence for the colonies in Africa began with the independence of Sudan in 1956, and the Gold Coast (Ghana) in 1957. All of the British colonies on mainland Africa became independent by 1966, although Rhodesia's unilateral declaration of independence in 1965 was not recognized by the UK or internationally.
Some of the British colonies in Asia were directly administered by British officials, while others were ruled by local monarchs as protectorates or in subsidiary alliance with the UK.
In 1947, British India was partitioned into the independent dominions of the Union of India and Pakistan. Hundreds of princely states, states ruled by monarchs in a treaty of subsidiary alliance with Britain, were integrated into India and Pakistan. India and Pakistan fought several wars over the former princely state of Jammu and Kashmir. French India was integrated into India between 1950 and 1954, and India annexed Portuguese India in 1961, and the Kingdom of Sikkim merged with India by popular vote in 1975.
Violence, civil warfare, and partition
Significant violence was involved in several prominent cases of decolonization of the British Empire; partition was a frequent solution. In 1783, the North American colonies were divided between the independent United States, and British North America, which later became Canada.
The Indian Rebellion of 1857 was a major uprising in India against British East India Company. It was characterized by massacres of civilians on both sides. It was not a movement for independence, however, and only a small part of India was involved. In the aftermath, the British pulled back from modernizing reforms of Indian society, and the level of organised violence under the British Raj was relatively small. Most of that was initiated by repressive British administrators, as in the Amritsar massacre of 1919, or the police assaults on the Salt March of 1930. Large-scale communal violence broke out between Hindus and Muslims and between Muslims and Sikhs after the British left in 1947 in the newly independent dominions of India and Pakistan. Much later, in 1970, further communal violence broke out within Pakistan in the detached eastern part of East Bengal, which became independent as Bangladesh in 1971.
Cyprus, which came under full British control in 1914 from the Ottoman Empire, was culturally divided between the majority Greek element (which demanded "enosis" or union with Greece) and the minority Turks. London for decades assumed it needed the island to defend the Suez Canal; but after the Suez crisis of 1956, that became a minor factor, and Greek violence became a more serious issue. Cyprus became an independent country in 1960, but ethnic violence escalated until 1974 when Turkey invaded and partitioned the island. Each side rewrote its own history, blaming the other.
Palestine became a British mandate from the League of Nations after World War I, initially including Transjordan. During that war, the British gained support from Arabs and Jews by making promises to both (see McMahon–Hussein Correspondence and Balfour Declaration). Decades of ethno—religious violence reached a climax with the UN Partition Plan and the ensuing war. The British eventually pulled out, and the former Mandate territory was divided between Israel, Jordan and Egypt.
French Empire
After World War I, the colonized people were frustrated at France's failure to recognize the effort provided by the French colonies (resources, but more importantly colonial troops – the famous tirailleurs). Although in Paris the Great Mosque of Paris was constructed as recognition of these efforts, the French state had no intention to allow self-rule, let alone grant independence to the colonized people. Thus, nationalism in the colonies became stronger in between the two wars, leading to Abd el-Krim's Rif War (1921–1925) in Morocco and to the creation of Messali Hadj's Star of North Africa in Algeria in 1925. However, these movements would gain full potential only after World War II.
After World War I, France administered the former Ottoman territories of Syria and Lebanon, and the former German colonies of Togoland and Cameroon, as League of Nations mandates. Lebanon declared its independence in 1943, and Syria in 1945.
In some instances, decolonization efforts ran counter to other concerns, such as the rapid increase of antisemitism in Algeria in the course of the nation's resistance to French rule.
Although France was ultimately a victor of World War II, Nazi Germany's occupation of France and its North African colonies during the war had disrupted colonial rule. On 27 October 1946, France adopted a new constitution creating the Fourth Republic, and substituted the French Union for the colonial empire. However power over the colonies remained concentrated in France, and the power of local assemblies outside France was extremely limited. On the night of 29 March 1947, a Madagascar nationalist uprising led the French government headed by Paul Ramadier (Socialist) to violent repression: one year of bitter fighting, 11,000–40,000 Malagasy died.
After the end of World War II, the Viet Minh launched the August Revolution and declared Vietnamese independence in September, although Allied troops reoccupied the territory afterwards. In late 1946, the Viet Minh attacked French troops in Hanoi, leading to the Indochina War (1946–54). France later recognized the independence of the State of Vietnam, the Kingdom of Laos, and the Kingdom of Cambodia, while also recognizing the unity of Vietnam (whose territories has been split into three separate regions under French colonial rule) and supported the anti-communist faction in this country against the communists who fought in the name of anti-colonialism in 1949. The war thus became part of the world-wide Cold War. Cambodia and Laos became fully independent in late 1953, Vietnam became fully independent on 4 June 1954, and the Geneva Accords of 21 July 1954 left Vietnam divided into the North and South with the fact that France recognized communists gaining the North. After North Vietnamese military victory in April 1975, Vietnam would be de jure united under a communist government on 2 July 1976.
In 1956, Morocco and Tunisia gained their independence from France. In 1960, eight independent countries emerged from French West Africa, and five from French Equatorial Africa. The Algerian War of Independence raged from 1954 to 1962. To this day, the Algerian war – officially called a "public order operation" until the 1990s – remains a trauma for both France and Algeria. Philosopher Paul Ricœur has spoken of the necessity of a "decolonisation of memory", starting with the recognition of the 1961 Paris massacre during the Algerian war, and the decisive role of African and especially North African immigrant manpower in the Trente Glorieuses post–World War II economic growth period. In the 1960s, due to economic needs for post-war reconstruction and rapid economic growth, French employers actively sought to recruit manpower from the colonies, explaining today's multiethnic population.
After 1918
United States
A union of former colonies itself, the United States approached imperialism differently from the other Powers. Much of its energy and rapidly expanding population was directed westward across the North American continent against English and French claims, the Spanish Empire and Mexico. The Native Americans were sent to reservations, often unwillingly. With support from Britain, its Monroe Doctrine reserved the Americas as its sphere of interest, prohibiting other states (particularly Spain) from recolonizing the newly independent polities of Latin America. However, France, taking advantage of the American government's distraction during the Civil War, intervened militarily in Mexico and set up a French-protected monarchy. Spain took the step to occupy the Dominican Republic and restore colonial rule. The Union victory in the Civil War in 1865 forced both France and Spain to accede to American demands to evacuate those two countries. America's only African colony, Liberia, was formed privately and achieved independence early; Washington unofficially protected it. By 1900, the U.S. advocated an Open Door Policy and opposed the direct division of China.
After 1898 direct intervention expanded in Latin America. The United States purchased Alaska from the Russian Empire in 1867 and annexed Hawaii in 1898. Following the Spanish–American War in 1898, the US added most of Spain's remaining colonies: Puerto Rico, Philippines, and Guam. Deciding not to annex Cuba outright, the U.S. established it as a client state with obligations including the perpetual lease of Guantánamo Bay to the U.S. Navy. The attempt of the first governor to void the island's constitution and remain in power past the end of his term provoked a rebellion that provoked a reoccupation between 1906 and 1909, but this was again followed by devolution. Similarly, the McKinley administration, despite prosecuting the Philippine–American War against a native republic, set out that the Territory of the Philippine Islands was eventually granted independence. In 1917, the U.S. purchased the Danish West Indies (later renamed the US Virgin Islands) from Denmark and Puerto Ricans became full U.S. citizens that same year. The US government declared Puerto Rico the territory was no longer a colony and stopped transmitting information about it to the United Nations Decolonization Committee. As a result, the UN General Assembly removed Puerto Rico from the U.N. list of non-self-governing territories. Four referendums showed little support for independence, but much interest in statehood such as Hawaii and Alaska received in 1959.
The Monroe Doctrine was expanded by the Roosevelt Corollary in 1904, providing that the United States had a right and obligation to intervene "in flagrant cases of such wrongdoing or impotence" that a nation in the Western Hemisphere became vulnerable to European control. In practice, this meant that the United States was led to act as a collections agent for European creditors by administering customs duties in the Dominican Republic (1905–1941), Haiti (1915–1934), and elsewhere. The intrusiveness and bad relations this engendered were somewhat checked by the Clark Memorandum and renounced by President Franklin D. Roosevelt's "Good Neighbor Policy".
The Fourteen Points were preconditions addressed by President Woodrow Wilson to the European powers at the Paris Peace Conference following World War I. In allowing allies France and Britain the former colonial possessions of the German and Ottoman Empires, the US demanded of them submission to the League of Nations mandate, in calling for V. A free, open-minded, and absolutely impartial adjustment of all colonial claims, based upon a strict observance of the principle that in determining all such questions of sovereignty the interests of the populations concerned must have equal weight with the equitable government whose title is to be determined. See also point XII.
After World War II, the U.S. poured tens of billions of dollars into the Marshall Plan, and other grants and loans to Europe and Asia to rebuild the world economy. At the same time American military bases were established around the world and direct and indirect interventions continued in Korea, Indochina, Latin America (inter alia, the 1965 occupation of the Dominican Republic), Africa, and the Middle East to oppose Communist movements and insurgencies. Since the dissolution of the Soviet Union, the United States has been far less active in the Americas, but invaded Afghanistan and Iraq following the September 11 attacks in 2001, establishing army and air bases in Central Asia.
Japan
Before World War I, Japan had gained several substantial colonial possessions in East Asia such as Taiwan (1895) and Korea (1910). Japan joined the allies in World War I, and after the war acquired the South Seas Mandate, the former German colony in Micronesia, as a League of Nations Mandate. Pursuing a colonial policy comparable to those of European powers, Japan settled significant populations of ethnic Japanese in its colonies while simultaneously suppressing Indigenous ethnic populations by enforcing the learning and use of the Japanese language in schools. Other methods such as public interaction, and attempts to eradicate the use of Korean, Hokkien, and Hakka among the Indigenous peoples, were seen to be used. Japan also set up the Imperial Universities in Korea (Keijō Imperial University) and Taiwan (Taihoku Imperial University) to compel education.
In 1931, Japan seized Manchuria from the Republic of China, setting up a puppet state under Puyi, the last Manchu emperor of China. In 1933 Japan seized the Chinese province of Rehe, and incorporated it into its Manchurian possessions. The Second Sino-Japanese War started in 1937, and Japan occupied much of eastern China, including the Republic's capital at Nanjing. An estimated 20 million Chinese died during the 1931–1945 war with Japan.
In December 1941, the empire of Japan joined World War II by invading the European and U.S. colonies in Southeast Asia and the Pacific, including French Indochina, Hong Kong, the Philippines, Burma, Malaya, Indonesia, Portuguese Timor, and others. Following its surrender to the Allies in 1945, Japan was deprived of all its colonies with a number of them being returned to the original colonizing Western powers. The Soviet Union declared war on Japan in August 1945, and shortly after occupied and annexed the southern Kuril Islands, which Japan still claims.
After 1945
Planning for decolonization
Decolonization was often not extensively planned, instead occurring as a response to politics in the colony, politics at home, and increasing international pressure. Immediately following the war there was a wave of decolonization throughout Asia. This was followed by the Middle East, and in the 1960s sub-Saharan Africa. These waves saw most large colonies become independent, with many remaining colonies being smaller islands. Many of the smallest colonies would not become independent, instead joining either with nearby colonies and countries or becoming full parts of their administering country.
U.S. and Philippines
In the United States, the two major parties were divided on the acquisition of the Philippines, which became a major campaign issue in 1900. The Republicans, who favored permanent acquisition, won the election, but after a decade or so, Republicans turned their attention to the Caribbean, focusing on building the Panama Canal. President Woodrow Wilson, a Democrat in office from 1913 to 1921, ignored the Philippines, and focused his attention on Mexico and Caribbean nations. By the 1920s, the peaceful efforts by the Filipino leadership to pursue independence proved convincing. When the Democrats returned to power in 1933, they worked with the Filipinos to plan a smooth transition to independence. It was scheduled for 1946 by Tydings–McDuffie Act of 1934. In 1935, the Philippines transitioned out of territorial status, controlled by an appointed governor, to the semi-independent status of the Commonwealth of the Philippines. Its constitutional convention wrote a new constitution, which was approved by Washington and went into effect, with an elected governor Manuel L. Quezon and legislature. Foreign Affairs remained under American control. The Philippines built up a new army, under general Douglas MacArthur, who took leave from his U.S. Army position to take command of the new army reporting to Quezon. The Japanese occupation 1942 to 1945 disrupted but did not delay the transition. It took place on schedule in 1946 as Manuel Roxas took office as president.
Portugal
As a result of its pioneering discoveries, Portugal had a large and particularly long-lasting colonial empire which had begun in 1415 with the conquest of Ceuta and ended only in 1999 with the handover of Portuguese Macau to China. In 1822, Portugal lost control of Brazil, its largest colony.
From 1933 to 1974, Portugal was an authoritarian state (ruled by António de Oliveira Salazar). The regime was fiercely determined to maintain the country's colonial possessions at all costs and to aggressively suppress any insurgencies. In 1961, India annexed Goa and by the same year nationalist forces had begun organizing in Portugal. Revolts (preceding the Portuguese Colonial War) spread to Angola, Guinea Bissau and Mozambique. Lisbon escalated its effort in the war: for instance, it increased the number of natives in the colonial army and built strategic hamlets. Portugal sent another 300,000 European settlers into Angola and Mozambique before 1974. That year, a left-wing revolution inside Portugal overthrew the existing regime and encouraged pro-Soviet elements to attempt to seize control in the colonies. The result was a very long and extremely difficult multi-party Civil War in Angola, and lesser insurrections in Mozambique.