Car bomb

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The result of a car bombing in Iraq Car bombing, Baghdad.jpg
The result of a car bombing in Iraq

A car bomb, lorry bomb, or truck bomb, also known as a vehicle-borne improvised explosive device (VBIED), [1] is an improvised explosive device designed to be placed and detonated in an automobile or other vehicles.


Car bombs can be roughly divided into two main categories: those used primarily to kill the occupants of the vehicle (often as an assassination) and those used as a means to kill, injure or damage people and buildings outside the vehicle. The latter type may be parked (the vehicle disguising the bomb and allowing the bomber to get away), or the vehicle might be used to deliver the bomb (often as part of a suicide bombing).

It is commonly used as a weapon of terrorism or guerrilla warfare to kill people near the blast site or to damage buildings or other property. Car bombs act as their own delivery mechanisms and can carry a relatively large amount of explosives without attracting suspicion. In larger vehicles and trucks, weights of around 7,000 pounds (3,200 kg) or more have been used, [1] for example, in the Oklahoma City bombing. Car bombs are activated in a variety of ways, including opening the vehicle's doors, starting the engine, depressing the accelerator or brake pedals or simply lighting a fuse or setting a timing device. [2] The gasoline in the vehicle's fuel tank may make the explosion of the bomb more powerful by dispersing and igniting the fuel.

As a delivery system

Car bomb in Iraq, made up of a number of artillery shells concealed in the back of a pickup truck. Iraq carbomb.jpg
Car bomb in Iraq, made up of a number of artillery shells concealed in the back of a pickup truck.

Car bombs are effective weapons as they are an easy way to transport a large amount of explosives to the intended target. A car bomb also produces copious shrapnel, or flying debris, and secondary damage to bystanders and buildings. In recent years, car bombs have become widely used by suicide bombers. [3] [4] [5]


Defending against a car bomb involves keeping vehicles at a distance from vulnerable targets by using roadblocks and checkpoints, Jersey barriers, concrete blocks or bollards, metal barriers, or by hardening buildings to withstand an explosion. Since the height of the Provisional Irish Republican Army (PIRA) campaign in 1991, the entrance to Downing Street has been closed, preventing the general public from getting near Number 10. Where major public roads pass near buildings, road closures may be the only option (thus, for instance, in Washington, D.C. the portion of Pennsylvania Avenue immediately in front of the White House is closed to traffic). Historically these tactics have encouraged potential bombers to target "soft" or unprotected targets, such as markets. [6]

Suicide usage

In the Syrian Civil War, and Iraq, the car bomb concept was modified so that it could be driven and detonated by a driver, but armoured to withstand incoming fire. The vehicle would be driven to its target area, in a similar fashion to a kamikaze plane of WW2. These were known by the acronym SVBIED (from Suicide Vehicle Borne Improvised Explosive Device) or VBIEDs. This saw generally civilian cars with armour plating added, that would protect the car for as long as possible, so that it could reach its intended target. Cars were sometimes driven into enemy troop areas, or into incoming enemy columns. Most often, the SVIEDs were used by ISIL against Government forces, but also used by Syrian rebels (FSA and allied militias, especially the Al-Nusra Front) against government troops. [7]

The vehicles have become more sophisticated, with armour plating on the vehicle, protected vision slits, armour plating over the wheels so they would withstand being shot at, and also in some cases, additional metal grating over the front of the vehicle designed to activate rocket propelled grenades before hitting the actual surface of the vehicle. [8]

In some cases trucks were also used, as well as cars. They were sometimes used to start an assault. Generally the vehicles had a large space that would contain very heavy explosives. In some cases, animal drawn carts with improvised explosive devices have been used, generally either mules or horses. [ citation needed ] Tactically, a single vehicle may be used, or an initial "breakthrough" vehicle, then followed by another vehicle. [9]

While many car bombs are disguised as ordinary vehicles, [10] some that are used against military forces have improvised vehicle armour attached to prevent the driver from being shot when attacking a fortified outpost. [11]


Car bombs are preceded by the 16th century hellburners, explosive-laden ships which were used to deadly effect by the besieged Dutch forces in Antwerp against the besieging Spanish. Though using a less refined technology, the basic principle of the hellburner is similar to that of the car bomb.

The first reported suicide car bombing (and possibly the first suicide bombing) was the Bath School bombings of 1927, where 45 people, including the bomber, were killed and half of a school was blown up.

Mass-casualty car bombing, and especially suicide car bombing, is currently a predominantly Middle Eastern phenomenon. The tactic was first introduced to the region by the Zionist paramilitary organization Lehi, who used it extensively against Palestinian and British civilian and military targets; it was subsequently taken up by Palestinian militants as well. [12] The tactic was used in the Lebanese Civil War by the Shia militia group Hezbollah. A notable suicide car bombing was the 1983 Beirut barracks bombing, when two simultaneous attacks killed 241 U.S. Marines and 58 French military personnel. The perpetrator of these attacks has never been positively confirmed. In the Lebanese Civil War, an estimated 3,641 car bombs were detonated. [13]

While not an adaptation of a people-carrying vehicle, the WW2 German Goliath remote control tank, shares many parallels with a vehicle-based IED. It approached a target (often another tank) at some speed, and then exploded, destroying itself and the target. It was armoured so that it could not be destroyed en route. However, it was not driven by a person, instead operated by remote control from a safe distance. It was effectively an armoured suicide drone.

As a booby trap


TSA officers view the post-blast remains of a Chrysler Neon after an explosive was detonated inside it during training. 061509 story4.jpg
TSA officers view the post-blast remains of a Chrysler Neon after an explosive was detonated inside it during training.

Car bombs and detonators function in a diverse manner of ways and there are numerous variables in the operation and placement of the bomb within the vehicle. Earlier and less advanced car bombs were often wired to the car's ignition system, but this practice is now considered more laborious and less effective than other more recent methods, as it required a greater amount of work for a system that could often be quite easily defused. While it is more common nowadays for car bombs to be fixed magnetically to the underside of the car, underneath the passenger or driver's seat, or inside of the mudguard, detonators triggered by the opening of the vehicle door or by pressure applied to the brakes or accelerating pedals are also used. [2]

Bombs operating by the former method of fixation to the underside of the car more often than not make use of a device called a tilt fuse. A small tube made of glass or plastic, the tilt fuse is not dissimilar to a mercury switch or medical tablet tube. One end of the fuse will be filled with mercury, while the other open end is wired with the ends of an open circuit to an electrical firing system. Naturally, when the tilt fuse moves or is jerked, the supply of mercury will flow to the top of the tube and close the circuit. Thus, as the vehicle goes through the regular bumping and dipping that comes with driving over a terrain, the circuit is completed and the bomb or explosive is allowed to function. [2]

As a safety mechanism to protect the bomber, the placer of the bomb may rig a timing device incorporated with the circuit to activate the circuit only after a certain time period, therefore ensuring the bomber will not accidentally activate the bomb before he or she is able to get clear of the blast radius. [2]


Prior to the 20th century, bombs planted in horse carts had been used in assassination plots, notably in the unsuccessful "machine infernale" attempt to kill Napoleon on 24 December 1800.

The first car bomb may have been the one used for the assassination attempt on Ottoman Sultan Abdul Hamid II in 1905 in Istanbul by Armenian separatists, in the command of Papken Siuni belonging to the Armenian Revolutionary Federation.

Car bombing was a significant part of the Provisional Irish Republican Army (PIRA) campaign during The Troubles in Northern Ireland. Dáithí Ó Conaill is credited with introducing the car bomb to Northern Ireland. [14] [ circular reference ]Car bombs were also used by Ulster loyalist groups (for example, by the UVF during the Dublin and Monaghan bombings). [15] [16] [17]

PIRA Chief of Staff Seán Mac Stíofáin defines the car bomb as both a tactical and a strategic guerrilla weapon. Strategically, it disrupts the ability of the enemy government to administer the country, and hits simultaneously at the core of its economic structure by means of massive destruction. From a tactical point of view, it ties down a large number of security forces and troops around the main urban areas of the region in conflict. [18]


Vietcong car bombing aftermath scene in Saigon, 1965. Scene of Viet Cong terrorist bombing in Saigon, Republic of Vietnam, 1965 (Colorized).jpg
Vietcong car bombing aftermath scene in Saigon, 1965.

Groups that use car bombs

A 2005 car bombing in Iraq, in which a second car bomb was detonated while US forces were investigating the scene of an earlier such blast, resulting in 18 casualties. Car bomb in Iraq.jpg
A 2005 car bombing in Iraq, in which a second car bomb was detonated while US forces were investigating the scene of an earlier such blast, resulting in 18 casualties.

See also


  1. 1 2 "Vehicle Borne IEDs (VBIEDs)". Global Security. Archived from the original on 25 July 2008. Retrieved 3 August 2008.
  2. 1 2 3 4 Wilkinson, Paul; Christop Harman (1993). Technology and terrorism. Routledge. ISBN   0-7146-4552-4.
  3. "2015: an epidemic of suicide bombs | AOAV". AOAV. Action on Armed Violence. 10 August 2015. Archived from the original on 21 September 2017.
  4. Holly, Williams (March 5, 2017). "Reports of suicide car bombs, possible exposure to chemical weapons in Mosul fight". CBS News. Archived from the original on July 7, 2017.
  5. David, Enders (23 June 2015). "Car Bombs Have Become the Islamic State's Assault 'Weapon of Choice' | VICE News". VICE News. VICE News. Archived from the original on 2017-09-21.
  6. See Davis.
  7. IED Vehicle "Vehicle Borne IEDs (VBIEDs)". Archived from the original on 2008-07-25. Retrieved 2008-08-03.
  8. Trends Institution "Daeshis-armored-vehicle-borne IED" "Archived copy". Archived from the original on 2016-10-30. Retrieved 2016-10-29.CS1 maint: archived copy as title (link)
  9. Global Security.Org IED Vehicle "Vehicle Borne IEDs (VBIEDs)". Archived from the original on 2008-07-25. Retrieved 2008-08-03.
  10. Olson, Dean (2012). Tactical Counterterrorism the Law Enforcement Manual of Terrorism Prevention. Springfield: Charles C Thomas. ISBN   9780398087234. p.166
  11. "Take a look inside an armoured Islamic State car bomb". ABC News. 2 December 2015. Archived from the original on 2015-12-03.
  12. Davis, chapter 4, "Oranges for Jaffa".
  13. "The Atlas Group and Walid Raad - Cornerhouse". Archived from the original on 29 December 2007. Retrieved 12 December 2016.
  14. Dáithí Ó Conaill#cite note-2
  15. "The Lewiston Daily Sun - Google News Archive Search".
  16. "CAIN: Chronology of the Conflict 1969".
  17. "February 2014". Come Here To Me!.
  18. McStiofáin, Seán (1975). Revolutionary in Ireland. G. Cremonesi. p. 243.
  19. Car bomb kills Northern Ireland lawyer Archived 2009-09-09 at the Wayback Machine BBC News, 15 March 1999.
  20. Taylor, Peter (1999). Loyalists. Bloomsbury Publishing. pp. 125–126. ISBN   0-7475-4519-7.
  21. " | Especial ETA: la dictadura del terror". Archived from the original on August 17, 2009.
  22. Davis, ch. 13, "Car-Bomb University"
  23. Bergmen, Ronan. "How Arafat Eluded Israel's Assassination Machine". New York Times Magazine.
  24. Kifner, John (October 2, 1981). "BOMB AT P.L.O. OFFICE KILLS AT LEAST 50". New York Times.
  25. Gardham, Duncan; Oscarsson, Marcus; Hutchison, Peter (12 December 2010). "Sweden suicide bomber: Taimur Abdulwahab al-Abdaly was living in Britain". The Daily Telegraph . London. Archived from the original on 21 January 2011. Retrieved 12 December 2010.
  26. "Daphne Caruana Galizia killed in Bidnija car blast". Times of Malta . 16 October 2017. Archived from the original on 16 October 2017.
  27. "200lb of explosives in Derry car bomb". BBC News. 3 August 2010. Archived from the original on 2010-08-22.
  28. Daniel Swift (4 May 2007). "Explosive reading". Review of: Buda’s Wagon: A Brief History of the Car Bomb. Financial Times. Retrieved 6 May 2010.
  29. Ellingwood, Ken (21 October 2010). "Mexico arrests man alleged to have directed fatal Juarez car bomb attack". Los Angeles Times . Archived from the original on 8 May 2012. Retrieved 6 May 2012.
  30. "Car bomb explosion followed by shootout in Nuevo Laredo". KGBT-TV . 24 April 2012. Archived from the original on 26 April 2012. Retrieved 6 May 2012.
  31. "Reafirma El Chapo presencia en Tamaulipas con coche bomba". Blog del Narco (in Spanish). 24 April 2012. Archived from the original on 27 April 2012. Retrieved 6 May 2012.
  32. "Suman 23 ejecutados en Nuevo Laredo, entre decapitados y colgados". Proceso (in Spanish). 4 May 2012. Archived from the original on 7 May 2012. Retrieved 6 May 2012.

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