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An artillery observer,artillery spotter, or forward observer (FO) is a soldier responsible for directing artillery and mortar fire support onto a target. An artillery observer usually accompanies a tank or infantry unit. Spotters ensure that indirect fire hits targets which those at a fire support base cannot see.
Historically, the range of artillery steadily increased over the centuries. In the era of bombards or Steinbüchse, the gunner could usually still fire directly on the target by line-of-sight. As ranges increased, methods of employing indirect fire were developed. This made a forward observer essential in order to be able to use artillery effectively. The proximity of the observer to the target depended on the terrain and battlefield situation. Elevated observation posts could be used as an aid to facilitate communication between the guns and the observers. [1] The development of optical and communication aids for observation advanced significantly in the First and Second World Wars. In the 21st century, Joint Tactical Fire Support observers emerged usually using sophisticated communications engineering systems.
Because artillery is an indirect fire weapon system, the guns are rarely in line-of-sight of their target, often located miles away. [2] The observer serves as the eyes of the guns, by sending target locations and if necessary corrections to the fall of shot, usually by radio. Equipment used in the observer role ranges from binoculars to laser rangefinders to unmanned aerial vehicles. When attached to a special forces unit, an artillery observer is often tasked with coordinating fire from long-range artillery guns against high-value targets such as enemy headquarters. This is in contrast to an artillery observer's typical work with field/line artillery, which works in support of its own combat group. Such patrols may also form into 'stay behind' parties which deliberately hide in special observation hides as the main force fights a withdrawal.
Broadly, there are two very different approaches to artillery observation. Either the observer has command authority and orders fire, including the type and amount of ammunition to be fired, to batteries. Or the observer requests fire from an artillery headquarters at some level, which decides if fire will be provided, by which batteries, and the type and amount of ammunition to be provided. The first is characterized by the British, the second by the United States. In World War II both Germany and the Soviet Union tended towards the British method. In the British system, the observer sends a fire order to their own and any other batteries authorized to them, and may request fire from additional batteries. Each battery command post converts the fire orders into firing data for its own guns. Until post-World War II the observer would usually order actual firing data to the guns of their own troop, this was enabled by the use of calibrating sights on the guns.[ citation needed ]
In the U.S. system, the observer sends a request for fire, usually to their battalion or battery Fire Direction Center (FDC). The FDC then decides how much fire to permit and may request additional fire from a higher artillery headquarters. FDC(s) convert the observer's target information into firing data for the battery's weapons. The equivalent of an artillery observer for close air support is a forward air controller, while for the equivalent for naval gunfire support is a spotter. For general fire support, the position is known as a fire support specialist (FiSTer) or simply an observer.
In the U.S. Army, a Light, Heavy, or Stryker Infantry company Fire Support Team (FIST) consists of a Fire Support Officer (FSO), a Fire Support Sergeant, three Forward Observers (FO), two Fire Support Specialists and three Radio Telephone Operators (RTO)[ citation needed ]. Armored/Cavalry FIST teams usually consist of just one FSO and three enlisted personnel. Brigade COLT teams operate in groups of two individuals, a Fire support specialist in the grade of E-1 to E-4 and a Fire Support Sergeant in the grade of E-5. Currently in unit training is beginning to incorporate more close air support and close combat attack missions into the field artillery team's mission.
In the U.S. Marine Corps, scout observers also act as naval gunfire spotters and call for, observe and adjust artillery and naval gunfire support, and coordinate fire support assets to include mortars, rockets, artillery, NSFS and CAS/CIFS. A rifle company Fire Support Team typically consists of a Fire Support Officer (FSO), Forward Air Controller (FAC) or Joint Terminal Attack Controller (JTAC), two scout observers (FO), and two radio operators (RO). In Weapons Company, the Fire Support Coordination Center (FSCC) determines fire support asset allocation to each rifle company FiST, and supervises the planning and execution of each FiST's fire support plan. Key players in the FSCC include the Fire Support Coordinator (FSC), Battalion Fire Support Officer (FSO), and Battalion Air Officer (Air-O).
For centuries the Battery Commander had been responsible for controlling the fire of their battery. This continued with the introduction of indirect fire in the early years of the 20th Century. However, the First World War introduced 24 hour, seven days a week fighting. Furthermore, indirect fire had increased the distance between the guns and their targets, and between the observers and their guns. This led to the use of observing officers to act on behalf of the battery commander. In the 1938 re-organization of the Royal Artillery batteries were divided into troops, with the troop commanders (Captains) as observing officers at an (OP). These officers and their parties could operate as either as an Observation Post (OP) or accompany the supported arm (infantry or armour) as Forward Observation Officers (FOOs). During World War II it became the practice for close support battery commanders to become part of the tank regiment or infantry battalion headquarters they were supporting. They also started using 'quick fireplans' usually limited to their own regiment, to support fast moving limited battalion actions.
Generally FOOs were assigned to a company or squadron of a battalion or regiment that their battery was supporting. In the British artillery system FOOs were always[ citation needed ] authorized to order fire commands to their own troop or battery, based on their assessment of the tactical situation and if necessary liaison with the supported arm commander.
From mid World War II some artillery observers were authorized to order fire to all batteries of their regiment, it also became the practice for some observers to be designated 'Commander's Representative' able to order fire to a divisional or corps artillery. Unauthorized officers could request fire from more than their own battery. During that war it also became the practice that FOOs[ citation needed ] arranged quick fireplans comprising several coordinated targets engaged by guns and mortars to support short offensive actions by the squadron or company they were with.
In World War II OP/FOO parties were normally mounted in an armored carrier, although those assigned to support armored brigades usually had a tank – initially a Stuart but in NW Europe usually a Sherman [ citation needed ]. Tanks continued to be used by some observers until about 1975. In 2002[ citation needed ] the British Army adopted the term Fire Support Team (FST) for its observation parties, including FACs under control of the artillery officer commanding the FST.
A functionally similar title is a mortar fire controller (MFC). An MFC is an infantry NCO who is part of their battalion's mortar platoon. He controls platoon's fire in the same way as an FOO. The introduction of FSTs places MFCs under tactical control of the FST commander.
Training, enabled by simulators, allows most soldiers to observe artillery fire, which has long been possible via a FOO.
The Royal Flying Corps and Royal Air Force had been responsible reporting targets and observation of fire in World War I, this role was subsequently called 'Arty/R, but proved difficult from high performance aircraft over hostile territory in World War II. In 1940 it was agreed that RAF AOP squadrons equipped with light aircraft, operating at low altitude over friendly territory and flown by Royal Artillery officers would be formed. These squadrons existed until the formation of the Army Air Corps in 1957. [3]
Since the development of small unmanned aerial vehicles, they have been used for identifying targets, spotting fall of shot, and correcting aim. Operators are usually relatively close to the target, behind enemy lines, and subject to attack. [4]
Artillery is a class of heavy military ranged weapons that launch 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 led to heavy, fairly immobile siege engines. As technology improved, lighter, more mobile field artillery cannons developed for battlefield use. This development continues today; modern self-propelled artillery vehicles are highly mobile weapons of great versatility generally providing the largest share of an army's total firepower.
A battalion is a military unit, typically consisting of 300 to 1,000 soldiers commanded by a lieutenant colonel, and subdivided into a number of companies. The typical battalion is built from three operational companies, one weapons company and one HQ company. In some countries, battalions are exclusively infantry, while in others battalions are unit-level organisations.
A company is a military unit, typically consisting of 100–250 soldiers and usually commanded by a major or a captain. Most companies are formed of three to seven platoons, although the exact number may vary by country, unit type, and structure.
Indirect fire is aiming and firing a projectile without relying on a direct line of sight between the gun and its target, as in the case of direct fire. Aiming is performed by calculating azimuth and inclination, and may include correcting aim by observing the fall of shot and calculating new angles.
In military organizations, an artillery battery is a unit or multiple systems of artillery, mortar systems, rocket artillery, multiple rocket launchers, surface-to-surface missiles, ballistic missiles, cruise missiles, etc., so grouped to facilitate better battlefield communication and command and control, as well as to provide dispersion for its constituent gunnery crews and their systems. The term is also used in a naval context to describe groups of guns on warships.
Naval gunfire support (NGFS), also known as naval surface fire support (NSFS), or shore bombardment, is the use of naval artillery to provide fire support for amphibious assault and other troops operating within their range. NGFS is one of several disciplines encompassed by the term naval fires. Modern naval gunfire support is one of the three main components of amphibious warfare assault operations support, along with aircraft and ship-launched land-attack missiles. Shipborne guns have been used against shore defences since medieval naval warfare.
In military science, suppressive fire is "fire that degrades the performance of an enemy force below the level needed to fulfill its mission". When used to protect exposed friendly troops advancing on the battlefield, it is commonly called covering fire. Suppression is usually only effective for the duration of the fire. It is one of three types of fire support, which is defined by NATO as "the application of fire, coordinated with the maneuver of forces, to destroy, neutralise or suppress the enemy".
Counter-battery fire is a battlefield tactic employed to defeat the enemy's indirect fire elements, including their target acquisition, as well as their command and control components. Counter-battery arrangements and responsibilities vary between nations but involve target acquisition, planning and control, and counter-fire. Counter-battery fire rose to prominence in World War I.
The Royal Regiment of Australian Artillery, normally referred to as the Royal Australian Artillery (RAA), is a Regiment of the Australian Army descended from the original colonial artillery units prior to Australia's federation. Australia's first guns were landed from HMS Sirius and a small earthen redoubt built, near the present-day Macquarie Place, to command the approaches to Sydney Cove. The deployment of these guns represents the origins of artillery in Australia. These and subsequent defences, as well as field guns, were operated by marines and the soldiers of infantry regiments stationed in Australia. Unlike their British and Canadian equivalents, there are no regiments of horse artillery in the order of battle of the Royal Australian Artillery. The First World War saw the raising of 60 field, 20 howitzer, and two siege batteries along with the heavy and medium trench mortar batteries. Until 19 September 1962 the Australian Artillery was referred to as the 'Royal Australian Artillery', however, on this date Queen Elizabeth II granted the RAA the title of 'The Royal Regiment of Australian Artillery'. The Regiment today consists of Regular and Reserve units.
Field artillery is a category of mobile artillery used to support armies in the field. These weapons are specialized for mobility, tactical proficiency, short range, long range, and extremely long range target engagement.
148 (Meiktila) Commando Forward Observation Battery is a specialist Naval Gunfire Support Forward Observation (NGSFO) unit within 29 Commando Regiment Royal Artillery of 3 Commando Brigade Royal Marines.
In the US system for land-based field artillery, the field artillery team is organized to direct and control indirect artillery fire on the battlefield.
The Sri Lanka Artillery (SLA) is the artillery arm of the Sri Lanka Army. It is made up of ten regular regiments and two volunteer regiments. The SLA is headquartered at Panagoda Cantonment, Panagoda.
A fire support team (FST) is a British Army unit responsible for directing artillery fire and close air support onto enemy positions. The term FST replaced the previous name of Forward Observation Party and reflects the inclusion of fires other than artillery into their control.
The 3rd Battalion, 319th Field Artillery Regiment is the field artillery battalion that directly supports the 1st Brigade Combat Team, 82nd Airborne Division. Known as the "Gun Devils", 3–319th AFAR has participated in battles from World War I to the current day, and is one of the most highly decorated field artillery units in the United States Army. The battalion's mission is "3-319th AFAR stands ready to deploy worldwide within 18 hours of notification, execute a parachute assault and conduct full-spectrum operations. Specifically, the battalion will provide responsive lethal and nonlethal fires in support of forcible entry and airfield seizure, and integrate and synchronize the effects of fires to achieve the 1BCT commander's intent."
A mortar carrier, or self-propelled mortar, is a self-propelled artillery piece in which a mortar is the primary weapon. Simpler vehicles carry a standard infantry mortar while in more complex vehicles the mortar is fully integrated into the vehicle and cannot be dismounted from the vehicle. Mortar carriers cannot be fired while on the move and some must be dismounted to fire.
Forward observers in the U.S. military are artillery observers who carry the Military Occupational Specialty designator of 13F in the United States Army and 0861 in the United States Marine Corps. They are officially called Joint Fire Support Specialists in the U.S. Army and Fire Support Marines in the U.S. Marine Corps. They are colloquially known as FiSTers, regardless of whether they are members of a FiST. The Battalion Fire Support Officer (FSO) is the Officer in Charge of a Battalion Fire Support Element.
Task Force 1-41 Infantry was a U.S. Army heavy battalion task force which took part in the Gulf War of January – March 1991. It was also known as Task Force Iron. Task Force 1-41 Infantry was the first coalition force to breach the Saudi Arabian border on 15 February 1991 and conduct ground combat operations in Iraq engaging in direct and indirect fire fights with the enemy on 17 February 1991. It was the spearhead of VII Corps. The Task Force served at the Battle of 73 Easting and the Battle of Norfolk where it was assigned to the U.S. 1st Infantry Division. It engaged and destroyed elements of 11 Iraqi divisions by the end of combat operations. This includes a significant role in the destruction of 4 Iraqi armored brigades at the Battle of Norfolk. Task Force 1-41 Infantry was awarded a Valorous Unit Award for its accomplishments during combat operations. It consisted primarily of the 1st Battalion, 41st Infantry Regiment, 3rd Battalion, 66th Armor Regiment, and the 4th Battalion, 3rd Field Artillery Regiment all being part of the 2nd Armored Division (Forward), based at Lucius D. Clay Kaserne, 24 kilometres (15 mi) north of Bremen, in the Federal Republic of Germany. Task Force 1-41 was commanded by Lieutenant Colonel James L. Hillman.
The 218th Field Artillery Regiment is a Field Artillery Regiment of the United States Army, Oregon Army National Guard. With lineage tracing back to 1866, it is the oldest National Guard artillery unit west of the Mississippi River continually serving. Today, its 2nd Battalion is a part of the 41st Infantry Brigade Combat Team and is currently headquartered in Forest Grove, Oregon.
The German attack on Vimy Ridge was a local attack on the Western Front on 21 May 1916, during the First World War. The Germans intended to prevent mines being blown under German positions by capturing the British front line and mine gallery entrances. After the Third Battle of Artois the French Tenth Army had held positions on the western slope of Vimy Ridge and the German 6th Army occupied positions on the steeper eastern slope. During the Battle of Verdun, the Tenth Army was withdrawn and the British First Army and Third Army on either flank, took over the French positions.