Colonial war (in some contexts referred to as small war) is a blanket term relating to the various conflicts that arose as the result of overseas territories being settled by foreign powers creating a
colony
A colony is a territory subject to a form of foreign rule, which rules the territory and its indigenous peoples separated from the foreign rulers, the colonizer, and their ''metropole'' (or "mother country"). This separated rule was often orga ...
. The term especially refers to
wars fought during the nineteenth century between
Europe
Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...
an armies in
Africa
Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth's land area and 6% of its total surfac ...
and
Asia
Asia ( , ) is the largest continent in the world by both land area and population. It covers an area of more than 44 million square kilometres, about 30% of Earth's total land area and 8% of Earth's total surface area. The continent, which ...
.
Description
Classification
Traditionally, wars could be divided into three categories:
wars of conquest
A war of aggression, sometimes also war of conquest, is a military conflict waged without the justification of self-defense, usually for territorial gain and subjugation, in contrast with the concept of a just war theory, just war.
Wars without ...
,
wars of liberation, and wars between states. These classifications can likewise be distinguished among colonial wars. Still, the term "colonial war" typically refers to a war of conquest. Wars of conquest, in a
colonial context, can be further broken down into two stages: a period of typically brief, regular warfare between an invading power and an indigenous force (which may be, in comparison to the invader,
irregular in composition or organization) followed by a period of
irregular warfare.
Counter-insurgency operations may be undertaken in order to prepare territory for settlement. Once a foothold has been established by an incoming power, it may launch expeditions into neighboring territory in retaliation against hostility or to neutralize a potential enemy.
Common characteristics

Colonial wars differed from "regular" wars (conflicts between neighboring states) in several ways. The first was that they were more political affairs than military ones. In contrast to regular wars, in which the goals of the belligerents were limited, colonial wars were absolute; conquering powers sought to exert total and permanent control over a territory and its population and ensure lasting stability. In spite of this, resources allotted to colonial campaigns were with few exceptions limited. The meanings of defeat and victory were usually more complicated in colonial wars, as in many cases the invading power would face a belligerent that was not encapsulated by a city, government or ruler. There was often less of a distinction between indigenous citizens and the regular armed forces of defending nations. This lack of centralized authority meant that formal peace agreements were rarely made. Without government structures that could be taken over, administration of conquered peoples and territory was more difficult. To counter this colonial armies would establish or rebuild markets, schools and other public entities following a conflict, as the Americans did in the
Philippines
The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a tot ...
following the
Spanish–American War
The Spanish–American War (April 21 – August 13, 1898) was fought between Restoration (Spain), Spain and the United States in 1898. It began with the sinking of the USS Maine (1889), USS ''Maine'' in Havana Harbor in Cuba, and resulted in the ...
.
In contrast to indigenous forces, European armies (the most common colonizing forces) were always professional forces, removed from the general population. Tasked with the work of rebuilding and administering
colonies, colonial armies were often active while regular armies in mother countries remained idle until conflict arose. As such, soldiers in these armies would develop their own military culture and practices. Most of a colonial soldier's knowledge would come from direct experience and not from a formal
military education. European armies were almost always technically superior to the indigenous forces they faced, though this could not always be used to their advantage, as equipment like
heavy artillery required roads (often not present) and deploying formations such as
cavalry
Historically, cavalry (from the French word ''cavalerie'', itself derived from ''cheval'' meaning "horse") are groups of soldiers or warriors who Horses in warfare, fight mounted on horseback. Until the 20th century, cavalry were the most mob ...
presented great logistical challenges. European armies also maintained good discipline, had high
morale, were well trained and were educated in their possible deployments and in performing
maneuvers. Regardless of the skill of their commanders, native armies usually lacked such cohesion and understanding of warfare. Colonial powers also employed
colonial troops in their campaigns, most of whom were of a mixed composition between metropolitan men and officers and indigenous conscripts.
Historical era
Colonial warfare became prevalent in the late 15th century as European powers increasingly seized overseas territories and began
colonizing them. The era of colonial wars is generally considered to have ended following the conclusion of the
Portuguese Colonial War in 1974, though some consider the
Falklands War
The Falklands War () was a ten-week undeclared war between Argentina and the United Kingdom in 1982 over two British Overseas Territories, British dependent territories in the South Atlantic: the Falkland Islands and Falkland Islands Dependenci ...
of 1982 to be the last true colonial war. Colonial wars are considered to be some of the first instances of irregular warfare and resulted in some of the first studies of
counter-insurgency practices.
Policy, strategy, and tactics
Colonial military practices and tactics were usually regarded as secondary to regular warfare by colonial powers. Due to this emphasis on more direct conflicts, imperial operations and development in colonial ventures often received less attention from the armed forces of nations responsible for them. Locally stationed military officials sometimes developed and conducted their own war policies free from metropolitan restraint. Other times, metropolitan policy was implemented at their discretion. French commanders cared little for state policy when conducting their campaigns in
Western Sudan in the 1870s and 1880s, while German soldiers in Africa frequently operated contrary to the directions of the colonial bureaucracy. Colonial wars often strained relations between civil and military officials, who competed for control over policy.
As in
total war
Total war is a type of warfare that includes any and all (including civilian-associated) resources and infrastructure as legitimate military targets, mobilises all of the resources of society to fight the war, and gives priority to warfare ov ...
, invading powers often directed actions against indigenous non-combatants and local economies. This included the burning of villages, theft of cattle, and systematic destruction of crops as committed by the French in
pacification campaigns in Algeria, and the Germans in the
Herero Wars of southern Africa. In extreme cases, some powers advocated for the extermination of troublesome peoples, as the Germans did following the Herero conflict, resulting in the
Herero and Namaqua genocide. Such actions were usually undertaken when there was a lack of political or military goals for an invader to achieve (if there was no central government to seize or organized army to subdue) as a means to subjugate local populations. European powers held the common perception that Asians and Africans "only understood the language of violence" so that they would not be subdued but through heavy-handed means. They refused to make concessions to indigenous forces for fear of appearing weak.
Invading powers were much more easily frustrated when an indigenous force chose to wage a
guerrilla war instead of committing to
pitched battle
A pitched battle or set-piece battle is a battle in which opposing forces each anticipate the setting of the battle, and each chooses to commit to it. Either side may have the option to disengage before the battle starts or shortly thereafter. A ...
s, such as in the
Franco-Hova Wars or the
First Indochina War
The First Indochina War (generally known as the Indochina War in France, and as the Anti-French Resistance War in Vietnam, and alternatively internationally as the French-Indochina War) was fought between French Fourth Republic, France and Việ ...
. Indigenous leaders such as
Abdelkader ibn Muhieddine of Algeria,
Mahmadu Lamine of Senegal, and
Samori Ture
Samori Ture ( – June 2, 1900), also known as Samori Toure, Samory Touré, or Almamy Samore Lafiya Toure, was a Mandinka people, Malinke and a Soninke people, Soninke Muslim cleric, military strategist, and founder of the Wassoulou Empire, an Is ...
of the
Wassoulou Empire
The Samorian state, also referred to as the Wassoulou empire, Ouassalou empire, Mandinka empire or Samory's empire, was a short-lived West African state that existed from roughly 1878 until 1898, although dates vary from source to source. It span ...
were able to resist European colonialism for years after disregarding traditional methods and using guerrilla tactics instead. In practice, regular and irregular forms of warfare generally happened within quick succession of one another. A handful of traditional battles were won by indigenous Asian and African forces with numerical superiority or the element of surprise over colonial powers, but over time they faced staggering losses and discouraging defeats. Such trends were marked by the German suppression of the
Maji Maji Rebellion, the defeat of the
Zulus at the hands of British forces at the
Battle of Rorke's Drift, and the destruction of
Mahdist cavalry by British
Maxim machine guns at the
Battle of Omdurman.
Britain and France developed field manuals to prepare soldiers for colonial warfare, whereas Germany lacked a defined system for educating its troops on colonial deployment. Artillery was used by colonizers primarily as a means to demoralize indigenous fighters.
Indigenous forces were usually made up of foot soldiers.
North America

The first major colonial wars in
North America
North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...
were fought by Spanish
conquistador
Conquistadors (, ) or conquistadores (; ; ) were Spanish Empire, Spanish and Portuguese Empire, Portuguese colonizers who explored, traded with and colonized parts of the Americas, Africa, Oceania and Asia during the Age of Discovery. Sailing ...
s.
Up until the
American Revolutionary War
The American Revolutionary War (April 19, 1775 – September 3, 1783), also known as the Revolutionary War or American War of Independence, was the armed conflict that comprised the final eight years of the broader American Revolution, in which Am ...
, most of the colonial conflicts in North America, if they were not
amphibious operations
Amphibious warfare is a type of Offensive (military), offensive military operation that today uses naval ships to project ground and air power onto a hostile or potentially hostile shore at a designated landing beach. Through history the opera ...
, took place in the wilderness. Most of the first British colonists in the region were farmers and merchants, not professional soldiers. At the onset of the
Colony of Virginia
The Colony of Virginia was a British Empire, British colonial settlement in North America from 1606 to 1776.
The first effort to create an English settlement in the area was chartered in 1584 and established in 1585; the resulting Roanoke Colo ...
they underwent military drilling and fortified their settlements. However, this practice was soon abandoned and a
militia
A militia ( ) is a military or paramilitary force that comprises civilian members, as opposed to a professional standing army of regular, full-time military personnel. Militias may be raised in times of need to support regular troops or se ...
system was adopted. Regular militias consisted of all able males from 16 to 60 years of age who used their own firearms and served without pay. Training was minimal and occurred once a year, at which point militiamen would have to demonstrate their proficiency with their weapons. In the areas under the greatest threat from Native Americans, the militias would garrison several fortified dwellings, though militiamen usually defended their own homes. From these militias, paid "rangers" were hired to patrol the frontier line and occasionally conduct offensive raids on Native American villages.
With the exception of the raiding expeditions of the
French and Indian War
The French and Indian War, 1754 to 1763, was a colonial conflict in North America between Kingdom of Great Britain, Great Britain and Kingdom of France, France, along with their respective Native Americans in the United States, Native American ...
, the majority of early colonial campaigns between colonizing powers in North America were fought in order to secure strategic
fort
A fortification (also called a fort, fortress, fastness, or stronghold) is a military construction designed for the defense of territories in warfare, and is used to establish rule in a region during peacetime. The term is derived from La ...
s. The purpose of nearly all movements against forts was to bring sufficient
artillery
Artillery consists of ranged weapons that launch Ammunition, munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, and l ...
close enough to breach their walls. As such, any typical attack involved the transport of cannon by a labor force, covered by an escort of troops, which would then be used to secure a compromised fort.
On the
American frontier
The American frontier, also known as the Old West, and popularly known as the Wild West, encompasses the Geography of the United States, geography, History of the United States, history, Folklore of the United States, folklore, and Cultur ...
in the
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
, experienced Native
trackers were employed as auxiliary scouts to gather intelligence on hostile
Native Americans' positions and movements. Most Native Americans performed
hit-and-run attacks on United States troops and settlers, often with horses. If their camp was discovered, their activities would be disrupted, usually via an early morning surprise assault. Trackers were usually native or mixed-race, though some were white. Indigenous people were often demoralized when they saw other natives working with United States forces.
Native American tribes in west were culturally predisposed to political and military independence. In turn, they struggled to unite against white settlers from the east, and were often distracted from doing so by internal conflicts of their own. Some individual tribes even had trouble uniting among themselves. Still, some managed to form coalitions, such as the alliance between the
Sioux,
Arapaho, and
Cheyenne which dominated the northern region of the
Great Plains
The Great Plains is a broad expanse of plain, flatland in North America. The region stretches east of the Rocky Mountains, much of it covered in prairie, steppe, and grassland. They are the western part of the Interior Plains, which include th ...
during the mid-nineteenth century. Regardless, all native peoples were at an economic and industrial disadvantage to the United States.
Africa
The first colonial wars in
Africa
Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth's land area and 6% of its total surfac ...
occurred between the Portuguese and various coastal inhabitants as the former sought to expand its trading empire with Asia. In spite of their efforts, the Portuguese conquistadors were only able to establish limited territorial holdings in
Sub-Saharan regions, facing tropical disease and organized resistance from Africans armed with iron weapons. They were also greatly outnumbered and encountered difficulty in getting their
musket
A musket is a muzzle-loaded long gun that appeared as a smoothbore weapon in the early 16th century, at first as a heavier variant of the arquebus, capable of penetrating plate armour. By the mid-16th century, this type of musket gradually dis ...
s to function in the humid climate.
In the 1600s and 1700s, other European powers such as the Dutch, the British, and the French began to take interest in Africa as a means to
supply slaves to their American colonies. They gradually established their own enclaves along the West African coast where they could actively trade with local rulers. This remained the state of affairs up through the early 1800s, as few Europeans showed interest in claiming large territories in the continent.
The European colonial campaigns in Africa were generally conducted by European forces with support from native troops. While European soldiers were generally more reliable, they were susceptible to diseases in tropical climates that local Africans had adjusted to, making it more optimal (less money had to be spent on medical treatment) for the latter to be deployed in Sub-Saharan environments. As such, European formations were often deployed on the continent for limited periods of time, while native units were used for longer expeditions. The powers concurred that the "African methods of warfare" were "inherently cruel". Such logic was used to justify the commission of atrocities in conflict.
African peoples were relatively disjointed, leading European powers to employ a strategy of
divide and rule, aggravate internal tensions, and make use of
collaborationism
Wartime collaboration is cooperation with the enemy against one's country of citizenship in wartime. As historian Gerhard Hirschfeld says, it "is as old as war and the occupation of foreign territory".
The term ''collaborator'' dates to the 19th c ...
. In response, African leaders sometimes formed
coalition
A coalition is formed when two or more people or groups temporarily work together to achieve a common goal. The term is most frequently used to denote a formation of power in political, military, or economic spaces.
Formation
According to ''A G ...
s. General
Thomas Robert Bugeaud oversaw the first deployment of mobile columns in a colonial war in 1840 when he ordered formations to raid and plunder Arab settlements to aid in the French pacification of Algeria upon realizing that local civilians were playing a key role in the war effort.
By the early 20th century, colonial campaigns in Africa had become increasingly "modern". Colonial powers were forced to commit larger bodies of troops for conquest or to suppress rebellion, as the British had to in the
Second Boer War
The Second Boer War (, , 11 October 189931 May 1902), also known as the Boer War, Transvaal War, Anglo–Boer War, or South African War, was a conflict fought between the British Empire and the two Boer republics (the South African Republic and ...
or the Italians did in their
conquest of Libya. Some of this was due to the fact that in many —but not all— places the technological gap between European armies and native forces had shrunk considerably, mostly with the proliferation of quick-firing rifles. Most of this change was brought on by the evolution of Africans' tactics and strategy. They had abandoned pitched battles and had instead adopted methods of
guerrilla warfare
Guerrilla warfare is a form of unconventional warfare in which small groups of irregular military, such as rebels, partisans, paramilitary personnel or armed civilians, which may include recruited children, use ambushes, sabotage, terrori ...
. In this fashion, the
Boers (in South Africa), the
Herero and
Nama (in
German South-West Africa), the Moroccans, and the Libyans all enjoyed considerable success against their opponents before their eventual respective defeats.
Asia
Asia, like Europe, was home to several powerful empires. Between the eleventh and fifteenth centuries both dramatically increased their commercial activities, especially with one another. However, unlike Europe, Asia's military capabilities developed very little. Most Asian armies were drawn up by local ruling elites from fighting classes of men with whom they had personal ties. They were funded by plunder, rent payments, and taxes. However, payment through taxes was frequently undermined by corrupt individuals in imperial bureaucracies, who would
embezzle the funds for personal use.
This changed significantly with the widespread adoption of
gunpowder
Gunpowder, also commonly known as black powder to distinguish it from modern smokeless powder, is the earliest known chemical explosive. It consists of a mixture of sulfur, charcoal (which is mostly carbon), and potassium nitrate, potassium ni ...
between the fifteenth and seventeenth centuries, giving rise to renewed imperial power in China and Japan.
Cannon
A cannon is a large-caliber gun classified as a type of artillery, which usually launches a projectile using explosive chemical propellant. Gunpowder ("black powder") was the primary propellant before the invention of smokeless powder during th ...
capable of breaching fortified walls and ending
siege
A siege () . is a military blockade of a city, or fortress, with the intent of conquering by attrition, or by well-prepared assault. Siege warfare (also called siegecrafts or poliorcetics) is a form of constant, low-intensity conflict charact ...
s was the principal weapon. However, once the new artillery was incorporated into imperial forces, there was little incentive to experiment with new military technologies or forms of organization. Any major recruitment overhauls were likely to upset local power structures. With the suppression of nomadic
steppe
In physical geography, a steppe () is an ecoregion characterized by grassland plains without closed forests except near rivers and lakes.
Steppe biomes may include:
* the montane grasslands and shrublands biome
* the tropical and subtropica ...
raiders (through the use of muskets) and the relatively limited presence of European merchantmen, there was little external pressure to alter their methods of warfare. The Asian empires also began to experience internal divisions. Competition between local elites over tax revenue burdened populaces, contributing greatly to the collapse of the
Mughal Empire
The Mughal Empire was an Early modern period, early modern empire in South Asia. At its peak, the empire stretched from the outer fringes of the Indus River Basin in the west, northern Afghanistan in the northwest, and Kashmir in the north, to ...
in the eighteenth and nineteenth centuries. Population growth also strained farmers and their children, breeding sectarian violence in China in the 1770s.
Meanwhile, European states were frequently warring with one another, and developed new weapons and tactics to maintain military dominance.
Drilling
Drilling is a cutting process where a drill bit is spun to cut a hole of circular cross section (geometry), cross-section in solid materials. The drill bit is usually a rotary Cutting tool (machining), cutting tool, often multi-point. The bit i ...
allowed for the conscription and recruitment of masses of unskilled men who would be disciplined in the performance of maneuvers. New tax systems made it possible to fund standing armies and ensure soldiers a regular salary. Enhanced power structures solidified the control commanders and political leaders had over their forces, making them effective even when operating far from seats of authority. The
Industrial Revolution
The Industrial Revolution, sometimes divided into the First Industrial Revolution and Second Industrial Revolution, was a transitional period of the global economy toward more widespread, efficient and stable manufacturing processes, succee ...
further increased Europeans' technological capabilities.
Ultimately, Asia's antiquated governments and military establishment were unable to match the Europeans' institutions. European military dominance over Asia would become apparent in India in the eighteenth century and in China and Japan in the nineteenth century.
As in Africa, European colonial ventures in
Asia
Asia ( , ) is the largest continent in the world by both land area and population. It covers an area of more than 44 million square kilometres, about 30% of Earth's total land area and 8% of Earth's total surface area. The continent, which ...
were usually bolstered by native soldiers.
Oceania

The
Queensland
Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Austr ...
Native Mounted Police Force regularly employed native trackers against
Indigenous Australians
Indigenous Australians are people with familial heritage from, or recognised membership of, the various ethnic groups living within the territory of contemporary Australia prior to History of Australia (1788–1850), British colonisation. The ...
' communities. The force was disbanded in the 1890s after all of the native populations had been subjugated.
See also
*
Insurgency
An insurgency is a violent, armed rebellion by small, lightly armed bands who practice guerrilla warfare against a larger authority. The key descriptive feature of insurgency is its asymmetric warfare, asymmetric nature: small irregular forces ...
*
Society of Colonial Wars
Notes
Citations
References
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Further reading
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{{DEFAULTSORT:Colonial War
Wars by type
History of European colonialism
War