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Irish Army Ranger Wing operators on a reconnaissance mission in East Timor

In military operations, reconnaissance or scouting is the exploration outside an area occupied by friendly forces to gain information about natural features and other activities in the area.

Examples of reconnaissance include patrolling by troops (skirmishers, Long Range Reconnaissance Patrol, U.S. Army Rangers, cavalry scouts, or military intelligence specialists), ships or submarines, manned/unmanned reconnaissance aircraft, satellites, or by setting up covert observation posts. Espionage normally is not reconnaissance, because reconnaissance is a military's special forces operating ahead of its main forces; spies are non-combatants operating behind enemy lines.

Often called "recce" (British, Canadian and Australian English) or "recon" (American English), the associated verb is reconnoitre.

History

Tatar horsemen in the painting On Reconnaissance by Józef Brandt, 1876

Traditionally, reconnaissance was a role that was adopted by the cavalry. Speed was key in these maneuvers, thus infantry was ill-suited to the task. From horses to vehicles, for warriors throughout history, commanders procured their ability to have speed and mobility, to mount and dismount, during maneuver warfare. Military commanders favored specialized small units for speed and mobility, to gain valuable information about the terrain and enemy before sending the main (or majority) troops into the area, screening, covering force, pursuit and exploitation roles. Skirmishing is a traditional skill of reconnaissance, as well as harassment of the enemy.

Overview

A Scimitar as used by armoured reconnaissance regiments of the British Army

A two-man JGSDF team mans Kawasaki KLX250 dirt bikes in the reconnaissance role during a public demonstration

Reconnaissance conducted by ground forces includes special reconnaissance, armored reconnaissance, amphibious reconnaissance and civil reconnaissance.

Aerial reconnaissance is reconnaissance carried out by aircraft (of all types including balloons and unmanned aircraft). The purpose is to survey weather conditions, map terrain, and may include military purposes such as observing tangible structures, particular areas, and movement of enemy forces.

Naval forces use aerial and satellite reconnaissance to observe enemy forces. Navies also undertake hydrographic surveys and intelligence gathering.

Reconnaissance satellites provide military commanders with photographs of enemy forces and other intelligence. Military forces also use geographical and meteorological information from Earth observation satellites.

Psychology

A tracker needs to pay close attention to both the environment and the psychology of his enemy. Knowledge of human psychology, sociology, and cultural backgrounds is necessary to know the actions of the enemy and where the enemy is heading. The celebrated Chief of Scouts Frederick Russell Burnham had this to say:^[2]

It is imperative that a scout should know the history, tradition, religion, social customs, and superstitions of whatever country or people he is called on to work in or among. This is almost as necessary as to know the physical character of the country, its climate and products. Certain people will do certain things almost without fail. Certain other things, perfectly feasible, they will not do. There is no danger of knowing too much of the mental habits of an enemy. One should neither underestimate the enemy nor credit him with superhuman powers. Fear and courage are latent in every human being, though roused into activity by very diverse means.

Discipline

Types of reconnaissance:

• 
  Terrain-oriented reconnaissance is a survey of the terrain (its features, weather, and other natural observations).


• 
  Force-oriented reconnaissance focuses on the enemy forces (number, equipment, activities, disposition etc.) and may include target acquisition.


• 
  Civil-oriented reconnaissance focuses on the civil dimension of the battlespace (areas, structures, capabilities, organizations, people and events abbreviated ASCOPE).

The techniques and objectives are not mutually exclusive; it is up to the commander whether they are carried out separately or by the same unit.

Reconnaissance-in-force

a Type 87 ARV armoured recon vehicle from the JSDF

Units tasked with reconnaissance are armed only for self-defense, and rely on stealth to gather information. Others are well-enough armed to also deny information to the enemy by destroying their reconnaissance elements.

Reconnaissance-in-force (RIF) is a type of military operation or military tactics used specifically to probe an enemy's disposition. By mounting an offensive with considerable (but not decisive) force, the commander hopes to elicit a strong reaction by the enemy that reveals its own strength, deployment, and other tactical data. The RIF commander retains the option to fall back with the data or expand the conflict into a full engagement.

Other methods consist of hit-and-run tactics using rapid mobility, and in some cases light-armored vehicles for added fire superiority, as the need arises.

Reconnaissance-by-fire

Reconnaissance by fire (or speculative fire) is the act of firing at likely enemy positions, in order to cause the enemy force to reveal their location by moving or by returning fire.^[3]

Reconnaissance-pull

Reconnaissance-pull is a tactic that is applied at the regiment to division level and defined as locating and rapidly exploiting enemy weaknesses. It is the ability to determine enemy positions and create exploitable gaps through which friendly forces can pass while avoiding obstacles and strong points.^[4]

A textbook example of reconnaissance-pull was documented during the Tinian landings of World War II, utilized by the United States Marine Corps's Amphibious Reconnaissance Battalion, from V Amphibious Corps. Aerial photography and the confirmation by the amphibious reconnaissance platoons determined that the Japanese defenders had largely ignored the northern beaches of the island, focusing most of their defensive effort on beaches in the south-west which were more favorable for an amphibious landing. American forces quickly changed their landing location to the northern beaches and planned a small and hasty "deception" operation off the southern beach, which resulted in a complete surprise for the Japanese forces. As a result, American forces were able to fight the Japanese force on land, where they had the advantage, leading to light losses and a relatively short battle that lasted only 9 days.^[5]

Types

When referring to reconnaissance, a commander's full intention is to have a vivid picture of his battlespace. The commander organizes the reconnaissance platoon based on:

1. mission,


2. enemy,


3. terrain,


4. troops and support available,


5. time available, and


6. civil considerations.

This analysis determines whether the platoon uses single or multiple elements to conduct the reconnaissance, whether it pertains to area, zone, or route reconnaissance, the following techniques may be used as long as the fundamentals of reconnaissance are applied.

Scouts may also have different tasks to perform for their commanders of higher echelons, for example: the engineer reconnaissance detachments will try to identify difficult terrain in the path of their formation, and attempt to reduce the time it takes to transit the terrain using specialist engineering equipment such as a pontoon bridge for crossing water obstacles. Sanitary epidemiological reconnaissance implies collection and transfer of all data available on sanitary and epidemiological situation of the area of possible deployment and action of armed forces, the same data for the neighboring and enemy armed forces. The aim for the reconnaissance is to clear up the reasons of the specific disease origin- sources of the infection in various extreme situations, including local wars and armed conflicts, the ways of the infection transfer and all factors promoting to the infestation.

After the armed forces have become stationary during wartime and emergency of peace time the sanitary epidemiological reconnaissance turns into sanitary and epidemiological surveillance and medical control of vital and communal activity of the armed forces.^[6][7]

Area

March 5, 1968. 1st Cav LRRP Montagnard scouts in Quang Tri Province, Vietnam

Area reconnaissance refers to the observation, and information obtained, about a specified location and the area around it; it may be terrain-oriented and/or force-oriented. Ideally, a reconnaissance platoon, or team, would use surveillance or vantage (static) points around the objective to observe, and the surrounding area. This methodology focuses mainly prior to moving forces into or near a specified area; the military commander may utilize his reconnaissance assets to conduct an area reconnaissance to avoid being surprised by unsuitable terrain conditions, or most importantly, unexpected enemy forces. The area could be a town, ridge-line, woods, or another feature that friendly forces intend to occupy, pass through, or avoid.^[1]

Within an area of operation (AO), area reconnaissance can focus the reconnaissance on the specific area that is critical to the commander. This technique of focusing the reconnaissance also permits the mission to be accomplished more quickly. Area reconnaissance can thus be a stand-alone mission or a task to a section or the platoon. The commander analyzes the mission to determine whether the platoon will conduct these types of reconnaissance separately or in conjunction with each other.^[1]

Civil

Civil reconnaissance is the process of gathering a broad spectrum of civil information about a specific population in support of military operations. It is related to and often performed in conjunction with infrastructure reconnaissance (assessment and survey). Normally the focus of collection in the operational area for civil reconnaissance is collecting civil information relating to the daily interaction between civilians and military forces. Civil information encompasses relational, temporal, geospatial and behavioral information captured in a socio-cultural backdrop. It is information developed from data related to civil areas, structures, capabilities, organizations, people, and events, within the civil component of the commander’s operational environment that can be processed to increase situational awareness and understanding. The type of civil information that is needed in order to support military operations varies based on the environment and situation.^[8][9]

Route

U.S. Seabee Engineer Reconnaissance Team on a mission to determine if a bridge can be used to support troop and convoy movements

Route reconnaissance is oriented on a given route: e.g. a road, a railway, a waterway; a narrow axis or a general direction of attack, to provide information on route conditions or activities along the route. A military commander relies on information about locations along his determined route: which those that would provide best cover and concealment; bridge by construction type, dimensions, and classification; or for landing zones or pickup zones, if the need arises.^[1]

In many cases, the commander may act upon a force-oriented route reconnaissance by which the enemy could influence movement along that route. For the reconnaissance platoons, or squads, stealth and speed—in conjunction with detailed intelligence-reporting—are most important and crucial. The reconnaissance platoon must remain far enough ahead of the maneuver force to assist in early warning and to prevent the force from becoming surprised.

Even it is paramount to obtain information about the available space in which a force can maneuver without being forced to bunch up due to obstacles. Terrain-oriented route reconnaissance allows the commander to obtain information and capabilities about the adjacent terrain for maneuvering his forces, to include, any obstacles (minefields, barriers, steep ravines, marshy areas, or chemical, biological, radiological, and nuclear contamination) that may obstruct vehicle movement—on routes to, and in, his assigned area of operations. This requirement includes the size of trees and the density of forests due to their effects on vehicle movement. Route reconnaissance also allows the observation for fields of fire along the route and adjacent terrain. This information assists planners as a supplement to map information.

Zone

Zone reconnaissance focuses on obtaining detailed information before maneuvering their forces through particular, designated locations. It can be terrain-oriented, force-oriented, or both, as it acquire this information by reconnoitering within—and by maintaining surveillance over—routes, obstacles (to include nuclear-radiological, biological, and chemical contamination), and resources within an assigned location.^[5]

Also, force-oriented zone reconnaissance is assigned to gain detailed information about enemy forces within the zone, or when the enemy situation is vague by which the information concerning cross-country traffic-ability is desired.^[1] The reconnaissance provides the commander with a detailed picture of how the enemy has occupied the zone, enabling him to choose the appropriate course-of-action.

As the platoon conducts this type of zone reconnaissance, its emphasis is on determining the enemy's locations, strengths, and weaknesses. This is the most thorough and complete reconnaissance mission and therefore is very time-intensive.

Gallery

An Oste class ELINT and reconnaissance ship, of the German Navy

Soviet convoy deploying Intermediate-range ballistic missiles in Cuba, 1962. Taken from a Lockheed U-2, it was the first picture proving Soviet missiles were being emplaced in Cuba

A U.S. Air Force Lockheed SR-71 Blackbird high-speed reconnaissance aircraft

German Army Fennek reconnaissance vehicle

See also

• Armoured reconnaissance


• Espionage


• Intelligence, surveillance, target acquisition, and reconnaissance


• List of reconnaissance units


• Long-range reconnaissance patrol


• 
  Pathfinder (military)—airborne pathfinders


• Surveillance aircraft


• U.S. military doctrine for reconnaissance

References

Further reading

Look up reconnaissance in Wiktionary, the free dictionary.

• Halsall, Christine, Women of Intelligence: Winning the Second World War with Air Photos, The History Press, 2012.
  ISBN 978-0-7524-6477-0.