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Guerrilla warfare

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Guerrilla warfare (also spelled guerilla) is a method of combat by which a smaller group of combatants attempts to use its mobility to defeat a larger, and consequently less mobile, army. It is typical that a smaller guerrilla army will either use its defensive status to draw its opponent into terrain which is better suited to the former or take advantage of its greater mobility by conducting strategic surprise attacks. This method of conducting war can be traced back at least as far as the third century B.C.E. to describe Fabius Maximus' strategies against Hannibal's forces during the Second Punic War, but it has been most frequently associated with armed struggles, usually of a revolutionary nature, from the nineteenth century on.

While some efforts on the part of guerrilla forces can be understood and recognized as advancing human rights in that they have fought against oppressive regimes that invaded their country, others have been the initiators of violence, using intimidation against civilians, and even terrorist tactics. Thus, guerrilla warfare is neither essentially good or evil, justified or unjustified, but depends on the motivations of those employing it.

Etymology

Guerrilla, from the Spanish term guerra, or "War," with the -illa diminutive ending, can be translated as "small war." The use of the diminutive evokes the difference in size between the guerrilla army and the state army against which they fight. The term was invented in Spain to describe the tactics used to resist the French regime instituted by Napoleon Bonaparte. Its meaning was soon broadened to refer to any similar resistance of any time or place.

The Spanish word for guerrilla fighter is guerrillero. The change of usage of guerrilla from the tactics employed to the person implementing them is a late nineteenth century mistake: In most languages the word still denotes the specific style of warfare.

Tactics and strategy

Guerrilla warfare is the expression of Sun Tzu's The Art of War, in contrast to Clausewitz's unlimited use of brute force. Other primary contributors to modern theories of guerrilla warfare include Mao Zedong, Abd el-Krim, T. E. Lawrence, John Brown, Vo Nguyen Giap, Josip Broz Tito, Michael Collins, Tom Barry, Che Guevara, and Charles de Gaulle.

Guerrilla tactics are based on ambush, deception, sabotage, and espionage, undermining an authority through long, low-intensity confrontation. It can be quite successful against an unpopular foreign or local regime, as demonstrated by the Vietnam conflict. A guerrilla army may increase the cost of maintaining an occupation or a colonial presence above what the foreign power may wish to bear. Against a local regime, the guerrilla fighters may make governance impossible with terror strikes and sabotage, and even combination of forces to depose their local enemies in conventional battle. These tactics are useful in demoralizing an enemy, while raising the morale of the guerrillas. In many cases, guerrilla tactics allow a small force to hold off a much larger and better equipped enemy for a long time, as in Russia's Second Chechen War and the Second Seminole War fought in the swamps of Florida in the United States. Guerrilla tactics and strategy are discussed extensively in standard reference works such as Mao's On Guerrilla Warfare.1

Continuum of guerrilla warfare

Guerrilla warfare can be conceived as a continuum.1 On the low end are small-scale raids, ambushes and attacks. In ancient times these actions were often associated with smaller tribal polities fighting a larger empire, as in the struggle of Rome against the Spanish tribes for over a century. In the modern era they continue with the operations of terrorist, insurgent, or revolutionary groups. The upper end is composed of a fully integrated political-military strategy, comprising both large and small units, engaging in constantly shifting mobile warfare, both on the low-end "guerrilla" scale, and that of large, mobile formations with modern arms. The latter phase came to fullest expression in the operations of Mao Zedong in China and Vo Nguyen Giap in Vietnam. In between are a large variety of situations-from the struggles of Palestinian guerrillas in the contemporary era, to Spanish and Portuguese irregulars operating with the conventional units of British Duke of Wellington, during the Peninsular War against Napoleon.2

Modern guerrilla warfare at its fullest (high end) elaboration should be conceived of as an integrated process, complete with sophisticated doctrine, organization, specialist skills, and propaganda capabilities. Guerrillas can operate as small, scattered bands of raiders, but they can also work side by side with regular forces, or combine for far ranging mobile operations in squad, platoon, or battalion sizes, or even form conventional units. Based on their level of sophistication and organization, they can shift between all these modes as the situation demands. Guerrilla warfare is flexible, not static.

Commando operations are not viewed as guerrilla warfare when they lack the political goal and operate as a branch of the armed forces.3 Guerrilla warfare is distinguished from the small unit tactics used in screening or reconnaissance operations typical of conventional forces. It is also different from the activities of bandits, pirates, or robbers. Such forces may use "guerrilla-like" tactics, but their primary purpose is booty, and not a clear political objective.

Three-phase Maoist model

Mao/Giap approach

Maoist theory of people's war divides warfare into three phases. In the first phase, the guerrillas gain the support of the population through the distribution of propaganda and attacks on the machinery of government. In the second phase, escalating attacks are made on the government's military and vital institutions. In the third phase, conventional fighting is used to seize cities, overthrow the government, and take control of the country. Mao's seminal work, On Guerrilla Warfare,1 has been widely distributed and applied, nowhere more successfully than in Vietnam, under military leader and theorist Vo Nguyen Giap. Giap's "Peoples War, Peoples Army"4 closely follows the Maoist three-stage approach, but with greater emphasis on flexible shifting between mobile and guerrilla warfare, and opportunities for a spontaneous "General Uprising" of the masses in conjunction with guerrilla forces.

Other variants

Such a phased approach does not apply to all guerrilla conflicts. In some cases, opposing conventional formations cannot be defeated in battle within any reasonable time scale. Small-scale attacks and sabotage however, can over time create an atmosphere of turmoil and chaos, (such as the "bloody mayhem" of Irish Leader Michael Collins) that is sufficient to force capitulation or extensive concessions from the opposing side. The Algerian War followed this pattern, as did the guerrilla operations leading to British withdrawal from in Cyprus.5 Palestinian struggles against Israel seem to also follow this pattern, with a series of attritional attacks and international diplomatic pressure forcing concessions from the Israeli leadership.

Organization

Guerrilla organization can range from small local rebel groups with a few dozen participants, to tens of thousands of fighters, deploying from tiny cells to formations of regimental strength. In most cases, there will be leadership aiming for a clear political objective. The organization will typically be structured into political and military wings, sometimes allowing the political leadership to claim "plausible denial" for military attacks.6The most fully elaborated guerrilla warfare structure is seen by the Chinese and Vietnamese communists during the revolutionary wars of East and Southeast Asia.7

Types of operations

Guerrilla operations typically include a variety of attacks on transportation routes, individual groups of police or military, installations and structures, economic enterprises, and targeted civilians. Attacking in small groups, using camouflage and often captured weapons of that enemy, the guerrilla force can constantly keep pressure on its foes and diminish their numbers, while still allowing escape with relatively few casualties. The intention of such attacks is not only military but political, aiming to demoralize target populations or governments, or goading an overreaction that forces the population to take sides for or against the guerrillas. Examples range from the chopping off of limbs in various internal African rebellions, to the suicide bombings of Palestine and Sri Lanka, to sophisticated maneuvers by Viet Cong forces against military bases and formations.

Surprise and intelligence

For guerrilla operations to be successful, surprise must be achieved. If the operation has been betrayed or compromised it is usually called off immediately. Intelligence is extremely important, and detailed knowledge of the target's dispositions, weaponry, and morale is gathered before any attack. Intelligence can be harvested in several ways. Collaborators and sympathizers will usually provide a steady flow of useful information. If working clandestinely, the guerrilla operative may disguise his membership in the insurgent operation, and use deception to ferret out needed data. Employment or enrollment as a student may be undertaken near the target zone, community organizations may be infiltrated, and even romantic relationships struck up as part of intelligence gathering.7

Public sources of information are also invaluable to the guerrilla, from the flight schedules of targeted airlines, to public announcements of visiting foreign dignitaries, to Army Field Manuals. Modern computer access via the World Wide Web makes harvesting and collation of such data relatively easy.8 The use of on the spot reconnaissance is integral to operational planning. Operatives will "case" or analyze a location or potential target in depth-cataloging routes of entry and exit, building structures, the location of phones and communication lines, presence of security personnel, and a myriad of other factors. Finally intelligence is concerned with political factors-such as the occurrence of an election or the impact of the potential operation on civilian and enemy morale.

Relationships with the civil population

Relationships with civil populations are influenced by whether the guerrillas operate among a hostile or friendly population. A friendly population is of immense importance to guerrilla fighters, providing shelter, supplies, financing, intelligence, and recruits. The "base of the people" is thus the key lifeline of the guerrilla movement. In the early stages of the Vietnam War, American officials "discovered that several thousand supposedly government-controlled 'fortified hamlets' were in fact controlled by Viet Cong guerrillas, who 'often used them for supply and rest havens'." 9 Popular mass support in a confined local area or country, however, is not always strictly necessary. Guerrillas and revolutionary groups can still operate using the protection of a friendly regime, drawing supplies, weapons, intelligence, local security, and diplomatic cover. The Al Qaeda organization is an example of the latter type, drawing sympathizers and support primarily from the wide-ranging Muslim world, even after American attacks eliminated the umbrella of a friendly Taliban regime in Afghanistan.

An apathetic or hostile population makes life difficult for guerrillas and strenuous attempts are usually made to gain their support. These may involve not only persuasion, but a calculated policy of intimidation. Guerrilla forces may characterize a variety of operations as a liberation struggle, but this may or may not result in sufficient support from affected civilians. Other factors, including ethnic and religious hatreds, can make a simple national liberation claim untenable. Whatever the exact mix of persuasion or coercion used by guerrillas, relationships with civil populations are one of the most important factors in their success or failure.10

Use of terror

In some cases, the use of terror can be an aspect of guerrilla warfare. Terror is used to focus international attention on the guerrilla cause, liquidate opposition leaders, extort cash from targets, intimidate the general population, create economic losses, and keep followers and potential defectors in line. However, such tactics may backfire and cause the civil population to withdraw its support, or to back countervailing forces against the guerrillas.6

Such a situation occurred in Israel, where suicide bombings encouraged Israeli opinion to take a harsh stand against Palestinian attackers, including general approval of "targeted killings" to liquidate enemy cells and leaders.11 In the Philippines and Malaysia, communist terror strikes helped turn civilian opinion against the insurgents. In South American countries, civilian opinion at times backed the harsh countermeasures used by authoritarian regimes against revolutionary movements, such as with the Peruvian regime of Alberto Fujimori.

Withdrawal

Guerrillas must plan carefully for withdrawal once an operation has been completed, or if it is going badly. The withdrawal phase is sometimes regarded as the most important part of a planned action, and to get entangled in a lengthy struggle with superior forces is usually fatal to insurgent, terrorist, or revolutionary operatives. Withdrawal is usually accomplished using a variety of different routes and methods and may include quickly scouring the area for loose weapons, evidence cleanup, and disguise as peaceful civilians.1 In the case of suicide operations, withdrawal considerations by successful attackers are moot, nevertheless such activity as eliminating traces of evidence, or hiding materials and supplies must be done.

Logistics

Guerrillas typically operate with a smaller logistical footprint compared to conventional formations, nevertheless their activities can be elaborately organized. A primary consideration is to avoid dependence on fixed bases and depots which are comparatively easy for conventional units to locate and destroy. Mobility and speed are the keys and wherever possible, the guerrilla must live off the land, or draw support from the civil population in which he is embedded. In this sense, "the people" become the guerrillas supply base.1 Financing of both terrorist and guerrilla activities ranges from direct individual contributions (voluntary or non-voluntary), and actual operation of business enterprises by insurgent operatives, to bank robberies, kidnappings, and complex financial networks based on kinship, ethnic, and religious affiliation (such as that used by modern Jihadist organizations).

Permanent and semi-permanent bases form part of the guerrilla logistical structure, usually located in remote areas or in cross-border sanctuaries sheltered by friendly regimes.17 These can be quite elaborate, as in the tough Viet Cong (VC)/North Vietnamese Army (NVA) fortified base camps and tunnel complexes encountered by U.S. forces during the Vietnam War. Their importance can be seen by the hard fighting sometimes engaged in by communist forces to protect these sites. However, when it became clear that defense was untenable, communist units typically withdrew without sentiment.

Terrain

Guerrilla warfare is often associated with a rural setting, and this is indeed the case with the definitive operations of Mao and Giap, the mujahadeen of Afghanistan, the Ejército Guerrillero de los Pobres (EGP) of Guatemala, the Contras of Nicaragua, and the FMLN of El Salvador. Guerrillas however have successfully operated in urban settings as demonstrated in places like Argentina, Northern Ireland, and Cyprus. In those cases, guerrillas rely on a friendly population to provide supplies and intelligence. Rural guerrillas prefer to operate in regions providing plenty of cover and concealment, especially heavily forested and mountainous areas. Urban guerrillas, rather than melting into the mountains and jungles, blend into the population and are also dependent on a support base among the people. Rooting guerrillas out of both types of area can be extremely difficult.

Foreign support and sanctuaries

Foreign support in the form of soldiers, weapons, sanctuary, or statements of sympathy for the guerrillas is not strictly necessary, but it can greatly increase the chances of an insurgent victory.7 Foreign diplomatic support may bring the guerrilla cause to international attention, putting pressure on local opponents to make concessions, or garnering sympathetic support and material assistance. Foreign sanctuaries can add heavily to guerrilla chances, furnishing weapons, supplies, materials and training bases. Such shelter can benefit from international law, particularly if the sponsoring government is successful in concealing its support and in claiming "plausible denial" for attacks by operatives based in its territory.

The VC and NVA made extensive use of such international sanctuaries during their conflict, and the complex of trails, way-stations and bases snaking through Laos and Cambodia, the famous Ho Chi Minh Trail, was the logistical lifeline that sustained their forces in the South. Another case in point is the Mukti Bahini guerrillas who fought alongside the Indian Army in the 14-day Bangladesh Liberation War, in 1971, against Pakistan that resulted in the creation of the state of Bangladesh. In the post-Vietnam era, the Al Qaeda organization also made effective use of remote territories, such as Afghanistan under the Taliban regime, to plan and execute its operations.

Guerrilla initiative and combat intensity

Able to choose the time and place to strike, guerrilla fighters will usually possess the tactical initiative and the element of surprise. Planning for an operation may take weeks, months, or even years, with a constant series of cancellations and restarts as the situation changes.7 Careful rehearsals and "dry runs" are usually conducted to work out problems and details. Many guerrilla strikes are not undertaken unless clear numerical superiority can be achieved in the target area, a pattern typical of VC/NVA and other "Peoples War" operations. Individual suicide bomb attacks offer another pattern, typically involving only the individual bomber and his support team, but these too are spread out based on prevailing capabilities and political contexts.

Whatever approach is used, the guerrilla holds the initiative, and can prolong his survival though varying the intensity of combat. This means that attacks are spread out over quite a range of time, from weeks to years. During the interim periods, the guerrilla can rebuild, resupply, and plan. In the Vietnam War, most communist units (including mobile NVA regulars using guerrilla tactics) spent only a few days a month fighting. While they might be forced into an unwanted battle by an enemy sweep, most of the time was spent in training, intelligence gathering, political and civic infiltration, propaganda indoctrination, construction of fortifications, or foraging for supplies and food.7 The large numbers of such groups striking at different times however, gave the war its "around the clock" quality.

Counter-guerrilla warfare

Stopping guerrillas may be difficult because they, by definition, blend into their surroundings and try not to draw attention to themselves or engage in prolonged battles in which they could be overcome with conventional force.

Countering guerrilla fighters requires great planning and military intelligence. Understanding the terrain on which one is fighting is key as this takes away the guerrillas' "home-field" advantage and removes much of the risk of booby-traps and ambushes. Another key component to countering guerrilla fighters is to become friendly with the local population to the point of them being uncomfortable hiding and supporting the guerrillas:

Most soldiers who have engaged in counter-guerrilla warfare believe that an effective strategy cannot be based merely on defensive measures but rather must be tied to an aggressive offensive approach, taking the war to the guerrilla, denying them sanctuary and interdicting their support, stopping their ability to assemble and plan, and taking away their capability to act."12

Guidelines

The widely distributed and influential work of Sir Robert Thompson, counter-insurgency expert in Malaysia, offers several guidelines for countering guerrilla warfare. The basic elements of Thompson's10 moderate approach are:

  1. A viable competing vision that comprehensively mobilizes popular support
  2. Reasonable concessions where necessary
  3. Economy of force
  4. Big unit action may sometimes be necessary
  5. Mobility
  6. Systematic intelligence effort
  7. Methodical clear and hold
  8. Careful deployment of mass popular forces and special units
  9. Foreign assistance must be limited and carefully used

Thompson's underlying assumption is that of a country minimally committed to the rule of law and better governance. Numerous other regimes, however, give such considerations short shrift, and their counter-guerrilla operations have involved mass murder, genocide, starvation, and the massive spread of terror, torture, and execution. The totalitarian regimes of Stalin and Hitler are classic examples, as are more modern conflicts in places like Afghanistan. In Afghanistan's anti-Mujahideen war for example, the Soviets implemented a ruthless policy of wastage and depopulation, driving over one third of the Afghan population into exile (over 5 million people), and carrying out widespread destruction of villages, granaries, crops, herds, and irrigation systems, including the deadly and widespread mining of fields and pastures.

Variants

Some writers on counter-insurgency warfare emphasize the more turbulent nature of today's guerrilla warfare environment, where the clear political goals, parties and structures of such places as Vietnam, Malaysia, or El Salvador are not as prevalent. These writers point to numerous guerrilla conflicts that center around religious, ethnic, or even criminal enterprise themes, and that do not lend themselves to the classic "national liberation" template. The wide availability of the Internet has also cause changes in the tempo and mode of guerrilla operations in such areas as coordination of strikes, leveraging of financing, recruitment, and media manipulation. While the classic guidelines still apply, today's anti-guerrilla forces accept a more disruptive, disorderly, and ambiguous mode of operation.

Insurgents may not be seeking to overthrow the state, may have no coherent strategy or may pursue a faith-based approach difficult to counter with traditional methods. There may be numerous competing insurgencies in one theater, meaning that the counterinsurgent must control the overall environment rather than defeat a specific enemy. The actions of individuals and the propaganda effect of a subjective “single narrative” may far outweigh practical progress, rendering counterinsurgency even more non-linear and unpredictable than before. The counterinsurgent, not the insurgent, may initiate the conflict and represent the forces of revolutionary change. The economic relationship between insurgent and population may be diametrically opposed to classical theory. And insurgent tactics, based on exploiting the propaganda effects of urban bombing, may invalidate some classical tactics and render others, like patrolling, counterproductive under some circumstances. Thus, field evidence suggests, classical theory is necessary but not sufficient for success against contemporary insurgencies.13

Ethical dimensions

Civilians may be attacked or killed as punishment for alleged collaboration, or as a policy of intimidation and coercion. Such attacks are usually sanctioned by the guerrilla leadership with an eye towards the political objectives to be achieved. Attacks may be aimed to weaken civilian morale so that support for the guerrillas' opponents decreases. Civil wars may also involve deliberate attacks against civilians, with both guerrilla groups and organized armies committing atrocities. Ethnic and religious feuds may involve widespread massacres and genocide as competing factions inflict massive violence on targeted civilian population.

Guerrillas in wars against foreign powers may direct their attacks at civilians, particularly if foreign forces are too strong to be confronted directly on a long term basis. In Vietnam, bombings and terror attacks against civilians were fairly common, and were often effective in demoralizing local opinion that supported the ruling regime and its American backers. While attacking an American base might involve lengthy planning and casualties, smaller scale terror strikes in the civilian sphere were easier to execute. Such attacks also had an effect on the international scale, demoralizing American opinion, and hastening a withdrawal.

Guerrillas are in danger of not being recognized as lawful combatants because they may not wear a uniform, (to mingle with the local population), or their uniform and distinctive emblems may not be recognized as such by their opponents. Article 44, sections 3 and 4 of the 1977 First Additional Protocol to the Geneva Conventions, "relating to the Protection of Victims of International Armed Conflicts," does recognize combatants who, because of the nature of the conflict, do not wear uniforms as long as they carry their weapons openly during military operations. This gives non-uniformed guerrillas lawful combatant status against countries that have ratified this convention. However, the same protocol states in Article 37.1.c that "the feigning of civilian, non-combatant status" shall constitute perfidy and is prohibited by the Geneva Conventions.

Examples

Guerrilla tactics have been used with varying levels of success for hundreds of years and all over the world, from the Napoleonic Wars in Europe, to the American Civil War, to the Israeli-Palestinian conflict.

In Europe

Over centuries of history, many guerrilla movements appeared in Europe to fight foreign occupation forces. The Fabian Strategy applied by the Roman Republic against Hannibal in the Second Punic War could be considered an early example of guerrilla tactics. After witnessing several disastrous defeats at the hands of Hannibal, the Roman dictator Fabius Maximus decided to modify traditional warfare methods. More often full-scale pitched campaigns were exchanged for small-scale skirmishes, sieges, sabotage attempts, assassinations, and raiding parties. The Romans set aside the typical military doctrine of crushing the enemy in a single battle and initiated a successful, albeit unpopular, war of attrition against the Carthaginians that lasted for 14 years. In expanding their own Empire, the Romans also encountered numerous examples of guerrilla resistance to their legions.

Mongols also faced guerrilla forces composed of armed peasants in Hungary after the Battle of Mohi. During The Deluge in Poland, guerrilla tactics were applied. In the nineteenth century, peoples of the Balkans used guerrilla tactics to fight the Ottoman empire. In the 100 years war between England and France, commander Bertrand du Guesclin used guerrilla tactics to pester the English invaders. During the Scanian War, a pro-Danish guerrilla group known as the Snapphane fought against the Swedes. In seventeenth century Ireland, Irish irregulars called "tories" and "rapparees" used guerrilla warfare in the Irish Confederate Wars and the Williamite war in Ireland. The Finns guerrillas, sissis, fought against Russian occupation troops in the Great Northern War 1710-1721. The Russians retaliated brutally on civilian populace; the period is called Isoviha (Grand Hatred) in Finland.

Did you know?The term guerrillla, from the Spanish "small war," was first used to describe the resistance in Spain against Napoleon

In the Napoleonic Wars, many of the armies lived off the land. This often led to some resistance by the local population if the army did not pay fair prices for produce they consumed. Usually this resistance was sporadic, and not very successful, so it is not classified as guerrilla action. In the Peninsular War, however, the British, encouraged by the spontaneous mass resistance in Spain against Napoleon, gave aid to the Spanish guerrillas who tied down tens of thousands of French troops. The continual losses of troops caused Napoleon to describe this conflict his "Spanish ulcer." The British gave this aid because it cost them much less than it would have to equip British soldiers to face the French troops in conventional warfare. This was one of the most successful partisan wars in history and was where the word guerrilla was first used in this context. The Oxford English Dictionary lists Wellington as the oldest known source, speaking of "Guerrillas" in 1809.

American Revolutionary War

While the American Revolutionary War is often thought of as a guerrilla war, guerrilla tactics were uncommon, and almost all of the battles involved conventional set-piece battles. Some of the confusion may be due to the fact that generals George Washington and Nathaniel Greene successfully used a strategy of harassment and progressively grinding down British forces in a classic example of asymmetric warfare, instead of seeking a decisive battle. Nevertheless the theater tactics used by most of the American forces were those of conventional warfare. One of the exceptions was in the south, where the brunt of the war was upon militia forces who fought the enemy British troops and their Loyalist supporters, but used concealment, surprise, and other guerrilla tactics to much advantage. General Francis Marion of South Carolina, who often attacked the British at unexpected places and then faded into the swamps by the time the British were organized enough to return fire, was named by them "The Swamp Fox."

American Civil War

Irregular warfare in the American Civil War followed the patterns of irregular warfare in nineteenth century Europe. Three different types were conducted during the Civil War: "People's War," "partisan warfare," and "raiding warfare." The concept of "People's war," first described by Clausewitz in On War, was the closest example of a mass guerrilla movement in the era. In general, this type of irregular warfare was conducted in the hinterland of the Border States (Missouri, Arkansas, Tennessee, Kentucky, and northwestern Virginia), and was marked by a vicious neighbor against neighbor quality. One such example was the opposing irregular forces operating in Missouri and northern Arkansas from 1862 to 1865, most of which were pro-Confederate or pro-Union in name only and preyed on civilians and isolated military forces of both sides with little regard of politics. From these semi-organized guerrillas, several groups formed and were given some measure of legitimacy by their governments. Quantrill's Raiders, who

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