The term "IED" was coined by the British Army during the Northern Ireland conflict to refer to booby traps made by the IRA, and entered common use in the U.S. during the Iraq War.
[11] An IED is a bomb fabricated in an improvised manner incorporating destructive, lethal, noxious, pyrotechnic, or incendiary chemicals and designed to destroy or incapacitate personnel or vehicles.
[citation needed] An IED has five components: a switch (activator), an initiator (fuse), container (body), charge (explosive), and a power source (battery).
[citation needed] Antipersonnel IEDs typically also contain fragmentation-generating objects such as nails, ball bearings or even small rocks to cause wounds at greater distances than blast pressure alone could.
[citation needed] In the conflicts of the 21st century, anti-personnel improvised explosive devices (IED) have partially replaced conventional or military landmines as the source of injury to dismounted (pedestrian) soldiers and civilians.
[citation needed] These injuries were reported in BMJ Open to be far worse with IEDs than with landmines resulting in multiple limb amputations and lower body mutilation.
[18] A device placed or fabricated in an improvised manner incorporating destructive, lethal, noxious, pyrotechnic, or incendiary chemicals and designed to destroy, incapacitate, harass, or distract.
[citation needed] A speculative device incorporating radioactive materials designed to result in the dispersal of radioactive material for the purpose of area denial and economic damage, and/or for the purpose of creating a primary patho-physiological toxic effect (morbidity and mortality), or secondary psychological effect (causing fear and behavior modification) on a larger population.
A vehicle may be laden with explosives, set to explode by remote control or by a passenger/driver, commonly known as a car bomb or vehicle-borne IED (VBIED, pronounced vee-bid).
[32][33] American pizza delivery man Brian Douglas Wells was killed in 2003 by an explosive fastened to his neck, purportedly under duress from the maker of the bomb.
[37] According to the Daily Mirror UK security officials at MI-6 asserted that female bombers could travel undetected carrying the explosive chemicals in otherwise standard breast implants.
Often the transmitter and receiver operate on a matched coding system that prevents the RCIED from being initiated by spurious radio frequency signals or jamming.
[58] However, statistical evidence gathered by the US Army Maneuver Support Center at Fort Leonard Wood, MO shows that the dogs are not the most effective means of detecting IEDs.
By comparison, the truck bomb that all but razed the Alfred P. Murrah Federal Building in Oklahoma City and killed 168 people in 1995 weighed less than 5,000 pounds.
[82] A French study[26] showed that in Iraq, from March 2003 to November 2006, on a global 3,070 deaths in the US-led invading coalition soldiers, 1,257 were caused by IEDs, i.e. 41%.
Depending on the particular design (e.g., boobytrapped briefcase or car bomb) an independent electrical circuit supplied power to a conventional timer set for the intended time delay, e.g. 40 minutes.
Typically, a roadside bomb was placed in a drain or culvert along a rural road and detonated by remote control when British security forces vehicles were passing, as with the case of the 1979 Warrenpoint ambush.
Most IEDs used commercial or homemade explosives made in the Republic of Ireland, with ingredients such as gelignite and ANFO either stolen in construction sites or provided for by supporters in the South,[94][90][91] although the use of Semtex-H smuggled in from Libya in the 1980s was also common from the mid-1980s onward.
Between 1970 and 2005, the IRA detonated 19,000 IEDs in the Northern Ireland and Britain, an average of one every 17 hours for three and a half decades, arguably making it "the biggest terrorist bombing campaign in history".
[95] In the early 1970s, at the height of the IRA campaign, the British Army unit tasked with rendering safe IEDs, 321 EOD, sustained significant casualties while engaged in bomb disposal operations.
This mortality rate was far higher than other high risk occupations such as deep sea diving, and a careful review was made of how men were selected for EOD operations.
The review recommended bringing in psychometric testing of soldiers to ensure those chosen had the correct mental preparation for high risk bomb disposal duties.
The rapid changes in development led 321 EOD to employ specialists from DERA (now Dstl, an agency of the MOD), the Royal Signals, and Military Intelligence.
This approach by the British army to fighting the IRA in Northern Ireland led to the development and use of most of the modern weapons, equipment and techniques now used by EOD Operators throughout the rest of the world today.
[99][100][101] IEDs were also widely used in the 10-years long civil war of the Maoists in Nepal, ranging from those bought from illicit groups in India and China, to self-made devices.
The devices were used more for the act of terrorizing the urban population rather than for fatal causes, placed in front of governmental offices, street corners or road sides.
On 16 November 2021, suicide bombers set off two powerful explosions in the center of Uganda's capital Kampala during rush hour in an attack later claimed by Islamic State.
The FBI said that the bomb was specifically designed to cause maximum harm as the explosive device was, according to the Los Angeles Times, packed with fishing weights covered in rat poison, and may have been racially motivated.
[128] Houthis are using IEDs[129] against Saudi-led coalition and Hadi's forces during Yemeni Civil War (2015–present),[130][better source needed] Saudi Arabian-led intervention in Yemen and Saudi–Yemeni border conflict.
[135] The film The Hurt Locker follows an Iraq War Explosive Ordnance Disposal team who are targeted by insurgents and shows their psychological reactions to the stress of combat.