The concept of four "generations" in the history of
modern warfare was created by a team of
United States analysts, including
William S. Lind,
for the purpose of an argument for "the changing face of war" entering into a "fourth generation". The generations of warfare are sometimes dubbed as "4GW".
* First-generation warfare refers to
Ancient and
Post-classical battles fought with massed manpower, using
phalanx,
line
Line most often refers to:
* Line (geometry), object with zero thickness and curvature that stretches to infinity
* Telephone line, a single-user circuit on a telephone communication system
Line, lines, The Line, or LINE may also refer to:
Arts ...
and
column
A column or pillar in architecture and structural engineering is a structural element that transmits, through compression, the weight of the structure above to other structural elements below. In other words, a column is a compression member. ...
tactics with uniformed soldiers governed by the state. This generation came to an end around the mid-nineteenth century due to rapid improvements in the range, accuracy and rate-of-fire of many weapon systems.
* Second-generation warfare evolved after the invention of the
rifled musket
A rifled musket, rifle musket, or rifle-musket is a type of firearm made in the mid-19th century. Originally the term referred only to muskets that had been produced as a smoothbore weapon and later had their barrels replaced with rifled barrel ...
and
breech-loading weapon
A breechloader is a firearm in which the user loads the ammunition (cartridge or shell) via the rear (breech) end of its barrel, as opposed to a muzzleloader, which loads ammunition via the front ( muzzle).
Modern firearms are generally breec ...
s and continuing through the development of the
machine gun and
indirect fire. This generation predates the widespread effective use of motorised vehicles in battle (such as tanks and planes) and
combined arms warfare
Combined arms is an approach to warfare that seeks to integrate different combat arms of a military to achieve mutually complementary effects (for example by using infantry and armour in an urban environment in which each supports the other). ...
. The term ''second generation warfare'' was created by the
U.S. military
The United States Armed Forces are the military forces of the United States. The armed forces consists of six service branches: the Army, Marine Corps, Navy, Air Force, Space Force, and Coast Guard. The president of the United States is the ...
in 1989.
* Third-generation warfare focuses on using
Late modern technology-derived tactics of leveraging speed, stealth and surprise to bypass the enemy's lines and collapse their forces from the rear. Essentially, this was the end of linear warfare on a tactical level, with units seeking not simply to meet each other face to face but to outmaneuver each other to gain the greatest advantage. Armoured units, planes and paratroopers began to play an increasingly critical role in operations, with the development of strategies such as
Blitzkrieg
Blitzkrieg ( , ; from 'lightning' + 'war') is a word used to describe a surprise attack using a rapid, overwhelming force concentration that may consist of armored and motorized or mechanized infantry formations, together with close air su ...
and
Deep Battle.
* Fourth-generation warfare as presented by Lind et al. is characterized by a "post-modern" return to
decentralized forms of warfare, blurring of the lines between
war and
politics,
combatants and
civilians due to
nation states' loss of their near-monopoly on combat forces, returning to modes of conflict common in pre-modern times. Guerrilla groups, private military contractors and paramilitary organisations play a prominent role in fourth-generation warfare.
*Fifth-generation warfare is conducted primarily through
non-kinetic military action, such as
social engineering Social engineering may refer to:
* Social engineering (political science), a means of influencing particular attitudes and social behaviors on a large scale
* Social engineering (security), obtaining confidential information by manipulating and/or ...
,
misinformation,
cyberattacks
A cyberattack is any offensive maneuver that targets computer information systems, computer networks, infrastructures, or personal computer devices. An attacker is a person or process that attempts to access data, functions, or other restricte ...
, along with emerging technologies such as
artificial intelligence and fully
autonomous systems. Fifth generation warfare has been described by Daniel Abbot as a war of "information and perception".
First generation

In 1648, at the end of the
Thirty Years' War, the
Treaty of Westphalia gave a practical sovereignty to the
German states, which until then were semi-independent components of the
Holy Roman Empire. This more firmly established the sovereignty of the
nation-state
A nation state is a political unit where the state and nation are congruent. It is a more precise concept than "country", since a country does not need to have a predominant ethnic group.
A nation, in the sense of a common ethnicity, may inc ...
, which meant, among other things, that governments would have exclusive rights to organize and maintain their own militaries. Before this time, many armies and nations were controlled by religious orders and many wars were fought in
mêlée combat, or subversively through bribery and assassination. The first generation of modern warfare was intended to create a straightforward and orderly means of waging war.
Alternatively, it has been argued that the Peace of Westphalia did not solidify the power of the nation-state, but that the Thirty Years' War itself ushered in an era of large-scale combat that was simply too costly for smaller mercenary groups to carry out on their own. According to this theory, smaller groups ''chose'' to leave mass combat—and the expenses associated with it—in the domain of the nation-state.
The increased accuracy and speed of the
rifled musket
A rifled musket, rifle musket, or rifle-musket is a type of firearm made in the mid-19th century. Originally the term referred only to muskets that had been produced as a smoothbore weapon and later had their barrels replaced with rifled barrel ...
and the
breech-loader marks the end of first generation warfare; the concept of vast lines of soldiers meeting face to face became impractical due to the heavy casualties that could be sustained. Because these technologies were adopted gradually throughout the Americas and Europe, the exact end of the first generation of modern warfare depends on the region, but all world powers had moved on by the latter half of the 19th century.
[
In order to create a more controlled environment for warfare a military culture was developed that, in many ways, is still visible in the armed forces of today. Specially crafted uniforms set soldiers apart from the general populace.
An elaborate structure of rank was developed to better organize men into units. Rules for ]military drill
A drill is a tool or machine for cutting holes in a material.
Drill may also refer to:
Animals
* Drill (animal), a type of African primate
* Oyster drill, a type of snail
Military
* Military exercise
* Foot drill, the movements performed on a p ...
were perfected, allowing line and column maneuvers to be executed with more precision, and to increase the rate of fire in battle.
Control of media information release during the war and production of counterfeit money in order to devaluate enemy's economy were used for the first time during Napoleonic wars.
Examples:
* English Civil War
* Anglo-Spanish War
* Seven Years' War
* American Revolutionary War
* Napoleonic Wars
* War of 1812
* Mexican War of Independence
Second generation
In the 19th century, the invention of the breech-loading rifled musket meant longer range, greater accuracy, and faster rate of fire. Marching ranks of men straight into a barrage of fire from such weapons would cause tremendous rates of casualties, so a new strategy was developed.
Second generation warfare still maintained lines of battle but focused more on the use of technology to allow smaller units of men to maneuver separately. These smaller units allowed for faster advances, less concentrated casualties, and the ability to use cover and concealment to advantage.
To some degree, these concepts have remained in use even as the next generations have arisen, so the end of the second generation is not as clearly defined as that of the first. The development of the blitzkrieg
Blitzkrieg ( , ; from 'lightning' + 'war') is a word used to describe a surprise attack using a rapid, overwhelming force concentration that may consist of armored and motorized or mechanized infantry formations, together with close air su ...
highlighted some of the flaws of static firing positions and slow-moving infantry, so this can be considered the beginning of the end for the second generation, at least as the dominant force in military strategy.
The contributions of the second generation were responses to technological development. The second generation saw the rise of trench warfare, artillery support, more advanced reconnaissance techniques, extensive use of camouflage uniforms, radio communications, and fireteam maneuvers.
Examples:
* American Civil War
* Boer War
* World War I
* Spanish Civil War
* Iran–Iraq War
Third generation
The use of blitzkrieg during the German invasion of France first demonstrated the power of speed and maneuverability over static artillery positions and trench defenses. Through the use of tanks, mechanized infantry, and close air support
In military tactics, close air support (CAS) is defined as air action such as air strikes by fixed or rotary-winged aircraft against hostile targets near friendly forces and require detailed integration of each air mission with fire and moveme ...
, the Germans were able to quickly break through linear defenses and capture the rear.
The emphasis on maneuvering and speed to bypass enemy engagement remains a common strategy throughout the world, and collapsing an enemy's defenses by striking at deeper targets is—in a somewhat different way—a major strategy in fourth generation warfare.
The contributions of the third generation were based on the concept of overcoming technological disadvantage through the use of clever strategy. As linear fighting came to an end, new ways of moving faster began to appear.
The emphasis on mobility moved from heavy armor to greater speed, the development of the helicopter allowed insertions in hostile territory, and advanced missile technology allowed forces to bypass enemy defenses and strike at targets from great distances.
The speed inherent in these methods necessitated a greater degree of independence allowed to the units on the front lines.
Greater trust needed to be placed in junior officers commanding sub-units by higher-ranking officers—a belief that they could adequately achieve their objectives without micromanagement from higher ranking commanders in command headquarters.
Smaller units were allowed greater decision flexibility to deal with changing situations on the ground, rather than have decisions made for them by commanders who were distant from the front. This began to break down the regimented culture of order that was so important in previous theoretical eras of military command and control.
Examples:
* World War II
* Korean War
* Vietnam War
* Persian Gulf War
* Invasion of Afghanistan
* Iraq War
Fourth generation
Fourth-generation warfare is characterized by a blurring of the lines between war and politics, combatants and civilians. The term was first used in 1989 by a team of United States analysts, including William S. Lind, to describe warfare's return to a decentralized form. In terms of generational modern warfare
The concept of four "generations" in the history of modern warfare was created by a team of United States analysts, including William S. Lind, for the purpose of an argument for "the changing face of war" entering into a "fourth generation". T ...
, the fourth generation signifies the nation states' loss of their near-monopoly on combat forces, returning to modes of conflict common in pre-modern times.
The simplest definition includes any war in which one of the major participants is not a state but rather a violent non-state actor. Classical examples, such as the slave uprising under Spartacus or the mercenary uprising that occurred in Carthage after the first Punic War
The First Punic War (264–241 BC) was the first of three wars fought between Rome and Carthage, the two main powers of the western Mediterranean in the early 3rd century BC. For 23 years, in the longest continuous conflict and grea ...
, predate the modern concept of warfare and are examples of this type of conflict.
Fourth generation warfare is defined as conflicts which involve the following elements:
* Are complex and long term
* Terrorism (tactic)
* A non-national or transnational base – highly decentralized
* A direct attack on the enemy's core ideals
* Highly sophisticated psychological warfare, especially through media manipulation
Media manipulation is a series of related techniques in which partisans create an image or argument that favors their particular interests. Such tactics may include the use of logical fallacies, manipulation, outright deception (disinformation) ...
and lawfare
Lawfare is the use of legal systems and institutions to damage or delegitimize an opponent, or to deter individual's usage of their legal rights.''Unrestricted Warfare''p. 55
The term may refer to the use of legal systems and principles against ...
* All available pressures are used – political, economic, social and military
* Occurs in low intensity conflict, involving actors from all networks
* Non-combatants are tactical dilemmas
* Lack of hierarchy
* Small in size, spread out network of communication and financial support
* Use of insurgency and guerrilla tactics
Fourth-generation warfare theory has been criticized on the grounds that it is "nothing more than repackaging of the traditional clash between the non-state insurgent and the soldiers of a nation-state."
Fifth generation
Fifth-generation warfare (5GW) is warfare that is conducted primarily through non-kinetic military action, such as social engineering Social engineering may refer to:
* Social engineering (political science), a means of influencing particular attitudes and social behaviors on a large scale
* Social engineering (security), obtaining confidential information by manipulating and/or ...
, misinformation, cyberattacks
A cyberattack is any offensive maneuver that targets computer information systems, computer networks, infrastructures, or personal computer devices. An attacker is a person or process that attempts to access data, functions, or other restricte ...
, along with emerging technologies such as artificial intelligence and fully autonomous systems. Fifth generation warfare has been described by Daniel Abbot as a war of "information and perception".
Definition
There is no widely agreed upon definition of fifth-generation warfare, and it has been rejected by some scholars, including William S. Lind, who was one of the original theorists of fourth-generation warfare.
The term 'fifth-generation warfare' was first used in 2003 by Robert Steele. The following year, Lind criticised the concept, arguing that the fourth generation had yet to fully materialize.
In 2008, the term was used by Terry Terriff, who presented the 2003 ricin letters
The 2003 ricin letters were two ricin-laden letters found on two occasions between October and November 2003. One letter was mailed to the White House and intercepted at a processing facility; another was discovered with no address in South Caro ...
as a potential example, but stated that he was not entirely sure if it was a fifth-generation attack, claiming "we may not recognize it as it resolves around us. Or we might look at several alternative futures and see each as fifth generation." Terriff argued that while fifth-generation warfare allows "super-empowered individuals" to make political statements through terrorism, they lack the political power to actually have their demands met.
L.C. Rees described the nature of fifth generation warfare as difficult to define in itself, alluding to the third law of science fiction author Arthur C. Clarke
Sir Arthur Charles Clarke (16 December 191719 March 2008) was an English science-fiction writer, science writer, futurist, inventor, undersea explorer, and television series host.
He co-wrote the screenplay for the 1968 film '' 2001: A Spac ...
– "any sufficiently advanced technology is indistinguishable from magic."
Characteristics
Alex P. Schmid
Alex Peter Schmid (born 1943) is a scholar in terrorism studies, who from 1999 to 2005 was Officer-in-Charge of the Terrorism Prevention Branch of the United Nations Office on Drugs and Crime in Vienna. He is particularly known for his work on t ...
said that fifth-generation warfare is typified by its "omnipresent battlefield", and the fact that people engaged in it do not necessarily use military force, instead employing a mixture of kinetic and non-kinetic force. In the 1999 book '' Unrestricted Warfare'' by colonels Qiao Liang and Wang Xiangsui Wang Xiangsui (王湘穗, born October 1, 1954) is a professor at Beihang University in Beijing, China and a retired senior Colonel in the People's Liberation Army. He is also a co-author of ''Unrestricted Warfare'', a book which dictates that no c ...
of the People's Liberation Army
The People's Liberation Army (PLA) is the principal military force of the People's Republic of China and the armed wing of the Chinese Communist Party (CCP). The PLA consists of five service branches: the Ground Force, Navy, Air Force, ...
, they noted that in the years since the 1991 Gulf War, conventional military violence had decreased, which correlated to an increase in "“political, economic, and technological violence”, which they argued could be more devastating than a conventional war. On the contrary, Thomas P. M. Barnett
Thomas P.M. Barnett (born 1962) is an American military geostrategist and former chief analyst at Wikistrat. He developed a geopolitical theory that divided the world into "the Functioning Core" and the "Non-Integrating Gap" that made him parti ...
, believes that the effectiveness of fifth-generational warfare is exaggerated, as terrorism conducted by individuals, such as Timothy McVeigh or Ted Kaczynski, lacks the support of more organized movements. This was seconded by George Michael
George Michael (born Georgios Kyriacos Panayiotou; 25 June 1963 – 25 December 2016) was an English singer and songwriter. He is considered one of the most significant cultural icons of the MTV generation and is one of the best-selling musici ...
, who noted that in the United States, gang violence
A gang is a group or society of associates, friends or members of a family with a defined leadership and internal organization that identifies with or claims control over territory in a community and engages, either individually or collectivel ...
was responsible for far more deaths than lone wolf terrorist attacks.
References
{{DEFAULTSORT:Generation warfare 02
Warfare by type
Military doctrines