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An ambush is a long-established
military tactic Military tactics encompasses the art of organizing and employing fighting forces on or near the battlefield. They involve the application of four battlefield functions which are closely related – kinetic or firepower, mobility, protection or se ...
in which a
combatant Combatant is the legal status of an individual who has the right to engage in hostilities during an armed conflict. The legal definition of "combatant" is found at article 43(2) of Additional Protocol I (AP1) to the Geneva Conventions of 1949. It ...
uses an advantage of concealment or the
element of surprise Surprise () is a brief mental and physiological state, a startle response experienced by animals and humans as the result of an unexpected event. Surprise can have any valence; that is, it can be neutral/moderate, pleasant, unpleasant, positive, ...
to attack unsuspecting enemy combatants from concealed positions, such as among dense
underbrush In forestry and ecology, understory (American English), or understorey (Commonwealth English), also known as underbrush or undergrowth, includes plant life growing beneath the forest canopy without penetrating it to any great extent, but abov ...
or behind mountaintops. Ambushes have been used consistently throughout history, from
ancient Ancient history is a time period from the History of writing, beginning of writing and recorded human history to as far as late antiquity. The span of recorded history is roughly 5,000 years, beginning with the Sumerian language, Sumerian c ...
to
modern warfare Modern warfare is warfare that is in notable contrast with previous military concepts, methods, and technology, emphasizing how combatants must modernize to preserve their battle worthiness. As such, it is an evolving subject, seen different ...
. In the 20th century, an ambush might involve thousands of soldiers on a large scale, such as over a choke point such as a
mountain pass A mountain pass is a navigable route through a mountain range or over a ridge. Since many of the world's mountain ranges have presented formidable barriers to travel, passes have played a key role in trade, war, and both Human migration, human a ...
, or a small
irregulars Irregular military is any non-standard military component that is distinct from a country's national armed forces. Being defined by exclusion, there is significant variance in what comes under the term. It can refer to the type of military orga ...
band or
insurgent An insurgency is a violent, armed rebellion against authority waged by small, lightly armed bands who practice guerrilla warfare from primarily rural base areas. The key descriptive feature of insurgency is its asymmetric warfare, asymmetric na ...
group attacking a regular armed force patrols. Theoretically, a single well-armed and concealed
soldier A soldier is a person who is a member of an army. A soldier can be a conscripted or volunteer enlisted person, a non-commissioned officer, or an officer. Etymology The word ''soldier'' derives from the Middle English word , from Old French ...
could ambush other troops in a
surprise attack Military deception (MILDEC) is an attempt by a military unit to gain an advantage during warfare by misleading adversary decision makers into taking action or inaction that creates favorable conditions for the deceiving force. This is usually ac ...
. Sometimes an ambush can involve the exclusive or combined use of
improvised explosive devices An improvised explosive device (IED) is a bomb constructed and deployed in ways other than in conventional military action. It may be constructed of conventional military explosives, such as an artillery shell, attached to a detonating mechan ...
, that allow the attackers to hit enemy convoys or patrols while minimizing the risk of being exposed to return fire.


History

This use by early people of ambushing may date as far back as two million years when anthropologists have recently suggested that ambush techniques were used to hunt large game. One example from ancient times is the
Battle of the Trebia The Battle of the Trebia (or Trebbia) was the first major battle of the Second Punic War, fought between the Carthaginian forces of Hannibal and a Roman army under Sempronius Longus on 22 or 23 December 218 BC. It took place on the flood ...
river.
Hannibal Hannibal (; xpu, 𐤇𐤍𐤁𐤏𐤋, ''Ḥannibaʿl''; 247 – between 183 and 181 BC) was a Carthaginian general and statesman who commanded the forces of Carthage in their battle against the Roman Republic during the Second Puni ...
encamped within striking distance of the Romans with the Trebia River between them, and placed a strong force of cavalry and infantry in concealment, near the battle zone. He had noticed, says
Polybius Polybius (; grc-gre, Πολύβιος, ; ) was a Greek historian of the Hellenistic period. He is noted for his work , which covered the period of 264–146 BC and the Punic Wars in detail. Polybius is important for his analysis of the mixed ...
, a "place between the two camps, flat indeed and treeless, but well adapted for an ambuscade, as it was traversed by a water-course with steep banks, densely overgrown with brambles and other thorny plants, and here he proposed to lay a stratagem to surprise the enemy". When the Roman infantry became entangled in combat with his army, the hidden ambush force attacked the Roman infantry in the rear. The result was slaughter and defeat for the Romans. Nevertheless, the battle also displays the effects of good tactical discipline on the part of the ambushed force. Although most of the legions were lost, about 10,000 Romans cut their way through to safety, maintaining
unit cohesion Unit cohesion is a military concept, defined by one former United States Chief of staff in the early 1980s as "the bonding together of soldiers in such a way as to sustain their will and commitment to each other, the unit, and mission accomplishmen ...
. This ability to maintain discipline and break out or maneuver away from a
kill zone In military tactics, the kill zone, also known as killing zone, is an area entirely covered by direct and effective fire, an element of ambush within which an approaching enemy force is trapped and destroyed. The objective of the ambush force i ...
is a hallmark of good troops and training in any ambush situation. (See Ranger reference below). Ambushes were widely utilized by the
Lusitanians The Lusitanians ( la, Lusitani) were an Indo-European languages, Indo-European speaking people living in the west of the Iberian Peninsula prior to its conquest by the Roman Republic and the subsequent incorporation of the territory into the Roma ...
, in particular by their chieftain
Viriathus Viriathus (also spelled Viriatus; known as Viriato in Portuguese and Spanish; died 139 BC) was the most important leader of the Lusitanian people that resisted Roman expansion into the regions of western Hispania (as the Romans called it) or we ...
. Their usual tactic, called ''concursare'', involved repeatedly charging and retreating, forcing the enemy to eventually give them chase, in order to set up ambushes in difficult terrain where allied forces would be awaiting. In his first victory, he eluded the siege of Roman praetor Gaius Vetilius and attracted him to a narrow pass next to the Barbesuda river, where he destroyed his army and killed the praetor. Viriathus's ability to turn chases into ambushes would grant him victories over a number of Roman generals. Another famous Lusitanian ambush was performed by
Curius and Apuleius Curius and Apuleius were chieftains of the Lusitanians, a proto-Celtic tribe from western Hispania. They were active at the last phase of the Lusitanian War. Biography Sources describe them as heading a gang of robbers that fought Quintus Fabius ...
on Roman general
Quintus Fabius Maximus Servilianus Quintus Fabius Maximus Servilianus was the adoptive son of Quintus Fabius Maximus Aemilianus and the natural son of Gnaeus Servilius Caepio (consul in 169 BC)--hence the adoptive cognomen Servilianus. He was consul of the Roman Republic in 142 BC ...
, who led a numerically superior army complete with
war elephants A war elephant was an elephant that was trained and guided by humans for combat. The war elephant's main use was to charge the enemy, break their ranks and instill terror and fear. Elephantry is a term for specific military units using elephant ...
and
Numidian cavalry Numidian cavalry was a type of light cavalry developed by the Numidians. After they were used by Hannibal during the Second Punic War, they were described by the Roman historian Livy as "by far the best horsemen in Africa." History Numidian cava ...
. The ambush allowed Curius and Apuleius to steal Servilianus's loot train, although a tactic error in their retreat led to the Romans retaking the train and putting the Lusitanians to flight. Viriathus later defeated Servilianus with a
surprise attack Military deception (MILDEC) is an attempt by a military unit to gain an advantage during warfare by misleading adversary decision makers into taking action or inaction that creates favorable conditions for the deceiving force. This is usually ac ...
. Possibly the most famous ambush in ancient warfare was that sprung by Germanic warchief
Arminius Arminius ( 18/17 BC – 21 AD) was a chieftain of the Germanic Cherusci tribe who is best known for commanding an alliance of Germanic tribes at the Battle of the Teutoburg Forest in 9 AD, in which three Roman legions under the command of ge ...
against the Romans at
Battle of the Teutoburg Forest The Battle of the Teutoburg Forest, described as the Varian Disaster () by Ancient Rome, Roman historians, took place at modern Kalkriese in AD 9, when an alliance of Germanic peoples ambushed Roman legions and their auxiliaries, led by Publius ...
. This particular ambush was to affect the course of Western history. The Germanic forces demonstrated several principles needed for a successful ambush. They took cover in difficult forested terrain, allowing the warriors time and space to mass without detection. They had the element of surprise, and this was also aided by the defection of Arminius from Roman ranks prior to the battle. They sprang the attack when the Romans were most vulnerable; when they had left their fortified camp, and were on the march in a pounding rainstorm. The Germans did not dawdle at the hour of decision but attacked quickly, using a massive series of short, rapid, vicious charges against the length of the whole Roman line, with charging units sometimes withdrawing to the forest to regroup while others took their place. The Germans also used blocking obstacles, erecting a trench and earthen wall to hinder Roman movement along the route of the killing zone. The result was mass slaughter of the Romans, and the destruction of three legions. The Germanic victory caused a limit on Roman expansion in the West. Ultimately, it established the Rhine as the boundary of the Roman Empire for the next four hundred years, until the decline of the Roman influence in the West. The Roman Empire made no further concerted attempts to conquer Germania beyond the Rhine. There are many notable examples of ambushes during the Roman-Persian Wars. A year after their victory at Carrhae, the
Parthians Parthian may be: Historical * A demonym "of Parthia", a region of north-eastern of Greater Iran * Parthian Empire (247 BC – 224 AD) * Parthian language, a now-extinct Middle Iranian language * Parthian shot, an archery skill famously employed by ...
invaded Syria but were driven back after a Roman ambush near Antigonia. Roman Emperor Julian was mortally wounded in an ambush near
Samarra Samarra ( ar, سَامَرَّاء, ') is a city in Iraq. It stands on the east bank of the Tigris in the Saladin Governorate, north of Baghdad. The city of Samarra was founded by Abbasid Caliph Al-Mutasim for his Turkish professional army ...
in 363 during the retreat from his
Persian campaign Persian expedition or Persian campaign may refer to: * Persian campaign (Alexander the Great) (334–333 BC) *Julian's Persian expedition (363) * Persian expedition of Stepan Razin (1699) * Persian campaign of Peter the Great (1722–1723) * Pers ...
. A Byzantine invasion of Persian Armenia was repelled by a small force at Anglon who performed a meticulous ambush by using the rough terrain as
force multiplier In military science, force multiplication or a force multiplier is a factor or a combination of factors that gives personnel or weapons (or other hardware) the ability to accomplish greater feats than without it. The expected size increase requ ...
and concealing in houses.
Heraclius Heraclius ( grc-gre, Ἡράκλειος, Hērákleios; c. 575 – 11 February 641), was List of Byzantine emperors, Eastern Roman emperor from 610 to 641. His rise to power began in 608, when he and his father, Heraclius the Elder, the Exa ...
' discovery of a planned ambush by
Shahrbaraz Shahrbaraz (also spelled Shahrvaraz or Shahrwaraz; New Persian: ), was shah (king) of the Sasanian Empire from 27 April 630 to 9 June 630. He usurped the throne from Ardashir III, and was killed by Iranian nobles after forty days. Before usurpi ...
in 622 was a decisive factor in his campaign.


Arabia during Muhammad's era

According to Muslim tradition, Islamic Prophet
Muhammad Muhammad ( ar, مُحَمَّد;  570 – 8 June 632 Common Era, CE) was an Arab religious, social, and political leader and the founder of Islam. According to Muhammad in Islam, Islamic doctrine, he was a prophet Divine inspiration, di ...
used ambush tactics in his military campaigns. His first such use was during the
Caravan raids __NOTOC__ The list of expeditions of Muhammad includes the expeditions undertaken by the Muslim community during the lifetime of the Islamic prophet Muhammad. Some sources use the word ''ghazwa'' and a related plural ''maghazi'' in a narrow techn ...
. In the Kharrar caravan raid, Sa`d ibn Abi Waqqas was ordered to lead a raid against the
Quraysh The Quraysh ( ar, قُرَيْشٌ) were a grouping of Arab clans that historically inhabited and controlled the city of Mecca and its Kaaba. The Islamic prophet Muhammad was born into the Hashim clan of the tribe. Despite this, many of the Qur ...
. His group consisted of about twenty Muhajirs. This raid was about a month after the previous one. Sa'd, with his soldiers, set up an ambush in the valley of
Kharrar The military career of Muhammad (''c.'' 570 – 8 June 632), the Islamic prophet, encompasses several expeditions and battles throughout the Hejaz region in the western Arabian Peninsula which took place in the final ten years of his life, fro ...
on the road to Mecca and waited to raid a Meccan caravan returning from Syria. However, the caravan had already passed and the Muslims returned to Medina without any loot.Mubarakpuri, The Sealed Nectar (Free Version), p. 127. Arab tribes during Muhammad's era also used ambush tactics. One example retold in Muslim tradition is said to have taken place during the
First Raid on Banu Thalabah According to Muslim traditional lore, the First Raid on Banu Thalabah took place in August, 627AD in 4th month of, 6AH of the Islamic Calendar, under the leadership of Muhammad ibn MaslamahNote: Book contains a list of battles of Muhammad in Arabi ...
. The Banu Thalabah tribe were already aware of the impending attack; so they lay in wait for the Muslims, and when Muhammad ibn Maslama arrived at the site, the Banu Thalabah with 100 men ambushed the Muslims while they were making preparation to sleep and, after a brief resistance, killed them all except for Muhammad ibn Maslama, who feigned death. A Muslim who happened to pass that way found him and assisted him to return to
Medina Medina,, ', "the radiant city"; or , ', (), "the city" officially Al Madinah Al Munawwarah (, , Turkish: Medine-i Münevvere) and also commonly simplified as Madīnah or Madinah (, ), is the Holiest sites in Islam, second-holiest city in Islam, ...
. The raid was unsuccessful.


Procedure

In modern warfare, an ambush is most often employed by ground troops up to
platoon A platoon is a military unit typically composed of two or more squads, sections, or patrols. Platoon organization varies depending on the country and the branch, but a platoon can be composed of 50 people, although specific platoons may range ...
size against enemy targets, which may be other ground troops, or possibly vehicles. However, in some situations, especially when deep behind enemy lines, the actual attack will be carried out by a platoon, a
company A company, abbreviated as co., is a Legal personality, legal entity representing an association of people, whether Natural person, natural, Legal person, legal or a mixture of both, with a specific objective. Company members share a common p ...
-sized unit will be deployed to support the attack group, setting up and maintaining a forward patrol harbour from which the attacking force will deploy, and to which they will retire after the attack.


Planning

Ambushes are complex multi-phase operations and are therefore usually planned in some detail. First, a suitable killing zone is identified. This is the place where the ambush will be laid. It is generally a place where enemy units are expected to pass, and which gives reasonable cover for the deployment, execution and extraction phases of the ambush patrol. A path along a wooded valley floor would be a typical example. Ambush can be described geometrically as: * Linear, when a number of firing units are equally distant from the linear
kill zone In military tactics, the kill zone, also known as killing zone, is an area entirely covered by direct and effective fire, an element of ambush within which an approaching enemy force is trapped and destroyed. The objective of the ambush force i ...
. * L-shaped, when a short leg of firing units are placed to
enfilade Enfilade and defilade are concepts in military tactics used to describe a military formation's exposure to enemy fire. A formation or position is "in enfilade" if weapon fire can be directed along its longest axis. A unit or position is "in de ...
(fire the length of) the sides of the linear kill zone. * V-shaped, when the firing units are distant from the kill zone at the end where the enemy enters, so the firing units lay down bands of intersecting and interlocking fire. This ambush is normally triggered only when the enemy is well into the kill zone. The intersecting bands of fire prevent any attempt of moving out of the kill zone.FM 7-85 Chapter 6 Special Light Infantry Operations
/ref>


Viet Cong ambush techniques

Ambush criteria: The terrain for the ambush had to meet strict criteria: * provide concealment to prevent detection from the ground or air * enable ambush force to deploy, encircle and divide the enemy * allow for heavy weapons emplacements to provide sustained fire * enable the ambush force to set up observation posts for early detection of the enemy * permit the secret movement of troops to the ambush position and the dispersal of troops during withdrawal One important feature of the ambush was that the target units should 'pile up' after being attacked, thus preventing them any easy means of withdrawal from the
kill zone In military tactics, the kill zone, also known as killing zone, is an area entirely covered by direct and effective fire, an element of ambush within which an approaching enemy force is trapped and destroyed. The objective of the ambush force i ...
and hindering their use of heavy weapons and supporting fire. Terrain was usually selected which would facilitate this and slow down the enemy. Any terrain around the ambush site which was not favorable to the ambushing force, or which offered some protection to the target, was heavily mined and booby trapped or pre-registered for mortars. Ambush units: The NVA/VC ambush formations consisted of: * lead-blocking element * main-assault element * rear-blocking element * observation posts * command post Other elements might also be included if the situation demanded, such as a sniper screen along a nearby avenue of approach to delay enemy reinforcements. Command posts: When deploying into an ambush site, the NVA first occupied several observation posts, placed to detect the enemy as early as possible and to report on the formation it was using, its strength and firepower, as well as to provide early warning to the unit commander. Usually one main OP and several secondary OPs were established. Runners and occasionally radios were used to communicate between the OPs and the main command post. The OPs were located so that they could observe enemy movement into the ambush and often they would remain in position throughout the ambush in order to report routes of reinforcement and withdrawal by the enemy as well as his maneuver options. Frequently the OPs were reinforced to squad size and served as flank security. The command post was situated in a central location, often on terrain which afforded it a vantage point overlooking the ambush site. Recon methods: Reconnaissance elements observing a potential ambush target on the move generally stayed 300–500 meters away. Sometimes a "leapfrogging" recon technique was used. Surveillance units were echeloned one behind the other. As the enemy drew close to the first, it fell back behind the last recon team, leaving an advance group in its place. This one in turn fell back as the enemy again closed the gap, and the cycle rotated. This method helped keep the enemy under continuous observation from a variety of vantage points, and allowed the recon groups to cover one another.RAND Corp, "Insurgent Organization and Operations: A Case Study of the Viet Cong in the Delta, 1964–1966", (Santa Monica: August 1967)


See also

*
Ambush predator Ambush predators or sit-and-wait predators are carnivorous animals that capture or trap prey via stealth, luring or by (typically instinctive) strategies utilizing an element of surprise. Unlike pursuit predators, who chase to capture prey us ...
*
Viet Cong and PAVN battle tactics VC and PAVN battle tactics comprised a flexible mix of guerrilla and conventional warfare battle tactics used by Viet Cong (VC) and the North Vietnamese People's Army of Vietnam (PAVN) to defeat their U.S. and South Vietnamese (GVN/ARVN) oppon ...
*
Flanking maneuver In military tactics, a flanking maneuver is a movement of an armed force around an enemy force's side, or flank, to achieve an advantageous position over it. Flanking is useful because a force's fighting strength is typically concentrated in ...
*
Flypaper theory (strategy) In military strategy, the flypaper theory is the idea that it is desirable to draw enemies to a single area, where it is easier to kill them and they are far from one's own vulnerabilities. Perhaps the best description of the benefits of the strate ...
*
List of military tactics This article contains a list of military tactics. The meaning of the phrase is context sensitive, and has varied over time, like the difference between "strategy" and "tactics". General * Exploiting prevailing weather – the tactical use of ...
*
Sniper A sniper is a military/paramilitary marksman who engages targets from positions of concealment or at distances exceeding the target's detection capabilities. Snipers generally have specialized training and are equipped with high-precision r ...


References


Extract from Lt Col Anthony B. Herbert's Soldiers handbookUS Army Ranger Handbook
section 5-14 for ambushes and 6-11 for reaction to ambushes {{DEFAULTSORT:Ambush Assault tactics Military tactics Guerrilla warfare tactics Military operations by type