White phosphorus (weapon)
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:''This article is about the military applications of '''white phosphorus'''. For more general information, see [[phosphorus#Forms|Phosphorus]].''
'''White phosphorus''' (WP) is a flare- and smoke-producing [[incendiary weapon]],<ref name="www.faqs.org.470">{{cite web | title=Pyrotechnics, Explosives, & Fireworks | url=http://www.faqs.org/docs/air/ttpyro.html | accessmonthday=December 4 | accessyear=2005 }}</ref> or [[smoke-screen]]ing agent, made from
a common [[allotrope]] of the [[chemical element]] [[phosphorus]].
White phosphorus bombs and shells are [[incendiary device]]s, but can also be used as an offensive anti-personnel flame compound capable of causing serious burns or death.<ref name="refbot.471">
{{cite web
| title=DET.WP
| url=http://chppm-www.apgea.army.mil/dts/docs/detwp.pdf
| accessmonthday=December 4|accessyear=2005 }}
</ref>
The agent is used in [[bomb]]s, artillery shells, and mortar shells which burst into burning flakes of phosphorus upon impact. White phosphorus is commonly referred to in military [[jargon]] as "WP". The [[Vietnam War|Vietnam-era]] slang "Willy(ie) Pete"
or "Willy(ie) Peter" is still occasionally heard.
White phosphorus weapons are controversial today because of their potential use against civilians. While the Chemical Weapons Convention does not designate WP as a chemical weapon, various unofficial groups consider it to be one. In recent years, the United States, Israel, Russia, and Argentina have used white phosphorus in combat.
Its use by the US has resulted in considerable controversy (see [[white phosphorus use in Iraq]]). Initial field reports from Iraq referred to white phosphorus use against insurgents,<ref name=nctimes>
{{cite web
| title=Violence subsides for Marines in Fallujah
| publisher = North County Times
| author = Darrin Mortenson
| url=http://www.nctimes.com/articles/2004/04/11/military/iraq/19_30_504_10_04.txt
| date = [[2004-04-10]]
| accessdate=2007-04-04
}}</ref> but
its use was officially
denied until November, 2005,<ref name="news.bbc.co.uk.475">
{{citation
| title=BBC NEWS : Americas : White phosphorus: weapon on the edge
| author = Paul Reynolds
| url=http://news.bbc.co.uk/2/hi/americas/4442988.stm
| date = [[2005-11-16]]
| accessdate=2007-04-04
}}</ref> when the Pentagon
admitted<ref name="news.independent.co.uk.490">
{{cite web
| publisher= The Independent
| url=http://news.independent.co.uk/world/americas/article327379.ece
| date = [[2005-11-15]]
| accessdate=2007-04-04
| title= The fog of war: white phosphorus, Fallujah and some burning questions
| author=Andrew Buncombe and Solomon Hughes
}}</ref>
to the use of white phosphorus
while stating that its use for producing obscuring smoke is legal and does not violate the [[Chemical Weapons Convention]].<ref name="news.bbc.co.uk.nov30">
{{citation
| title=BBC NEWS: US general defends phosphorus use
| url=http://news.bbc.co.uk/2/hi/americas/4483690.stm
| accessmonthday=December 13
| accessyear=2005 }}
</ref>
A Pentagon spokesman has also admitted that WP "was used as an incendiary weapon against enemy combatants," though not against civilians.<ref name=BBC-Venable>
{{cite news
| title=US used white phosphorus in Iraq (Lt Col Barry Venable)
| date=November 16, 2005
| publisher=BBC
| url=http://news.bbc.co.uk/2/hi/middle_east/4440664.stm
| accessdate = 2007-04-04
}}</ref>
==History==
[[Image:White Phosphorous Rockets.jpg|thumb|A [[United States Air Force|USAF]] airman inspects 2.75 inch white phosphorus marking rockets in [[Osan Air Base]], [[South Korea|Republic of Korea]], 1996.]]
WP is believed to have been first used by [[Fenian]] [[arson]]ists in the 19th century in the form of a solution of WP in [[carbon disulfide]]. When the carbon disulfide evaporated, the WP would burst into flames, and probably also ignite the highly flammable carbon disulfide fumes. This mixture was known as "Fenian fire" and allegedly was used by disgruntled itinerant workers in Australia to cause delayed destruction of shabby sleeping quarters.
In 1916, during an intense ideological struggle over conscription for the [[World War I|First World War]], twelve members of the [[Industrial Workers of the World|I.W.W.]], a radical union of workers who openly opposed conscription, were arrested and convicted for using or plotting to use incendiary materials, including phosphorus. It is believed that eight or nine men in this group, known as the [[Sydney Twelve]], had been victims of a police frameup.<ref>
{{cite book
|author = Ian Turner, Sydney's Burning - The real conspiracy,
|publisher = Alpha Books,
|location = Sydney,
|year = 1969
|url = http://members.optushome.com.au/spainter/Turner.html
|accessdate = 2007-06-24
}}</ref> Most were released in 1920 after an inquiry.
===World War I and II===
The British Army introduced the first factory-built WP grenades in late 1916. In [[World War II]], white phosphorus mortar bombs, shells, rockets and grenades were used extensively by American, Commonwealth, and to a lesser extent Japanese forces, in both smoke-generating and antipersonnel roles. In 1940, when the invasion of Britain seemed imminent, the phosphorus firm of [[Albright and Wilson]] suggested that the British government use a material similar to Fenian fire in several expedient incendiary weapons. The only one fielded was the ''[[No 76 Special Incendiary Grenade|Grenade, No. 76]]'' or ''Special Incendiary Phosphorus grenade'', which consisted of a glass bottle filled with a mixture similar to Fenian fire, plus some [[latex]] (''c.f.'' [[Molotov cocktail]], [[Greek fire]]). It came in two versions, one with a red cap intended to be thrown by hand, and a slightly stronger bottle with a green cap, intended to be launched from the [[Northover projector]] (a crude 2.5 [[inch]] [[blackpowder]] [[grenade launcher]]). Instructions on each crate of SIP grenades included the observations, ''inter alia'':
:Store bombs (preferably in cases) in cool places, under water if possible.
:Stringent precautions must be taken to avoid cracking bombs during handling.
It was generally regarded as overly dangerous to its own operators.
At the start of the Normandy campaign, 20% of American 81 mm mortar rounds were WP. At least five American Medal of Honor citations mention their recipients using white phosphorus grenades to clear enemy positions. In the 1944 [[Battle of Normandy|liberation of Cherbourg]] alone, a single U.S. mortar battalion, the 87th, fired 11,899 white phosphorus rounds into the city.
The U.S. Army and Marines used WP shells in 4.2-inch chemical mortars. WP was widely credited by Allied soldiers for breaking up German infantry attacks and creating havoc among enemy troop concentrations during the latter part of the war. American servicemen in the Pacific and otherwise (to this day) were known to call the thrown bottles "Woolly Pete" or "Willie Pete" grenades, using the same WP initials as White Phosphorus.
Incendiary bombs were used extensively by the German, British and US air forces against civilian populations and targets of military significance in civilian areas (London, [[Hamburg]], [[Dresden]], [[Area bombing]] etc). Late in the war, some of these bombs used white phosphorus (about 1-200 grams) in place of magnesium as the igniter for their flammable mixtures. The use of incendiary weapons against civilians was banned (by signatory countries) in the 1980 [[Convention on Certain Conventional Weapons]] Protocol III. The USA has signed Articles I and II, but not Protocols III, IV, and V.
== Others ==
WP munitions were used extensively in [[Korean War|Korea]], [[Vietnam War|Vietnam]] and later by Russian forces in [[Chechnya]]. According to [[GlobalSecurity.org]], "In the [[First Chechen War|December 1994 battle for Grozny]] in Chechnya, every fourth or fifth Russian artillery or mortar round fired was a smoke or white phosphorus round."
<!-- Cite or leave out: I can't find your cite on the globalsecurity site: According to [[GlobalSecurity.org]], it was also used by [[Russia]] at [[Grozny]] in December 1994 (quote in the third section: WP as smoke); -->
WP was used by the [[Argentine Army]] during the [[1989 attack on La Tablada Regiment]], in a violation of the Geneva Convention (according to a document presented by the human rights commission of the [[United Nations]] on [[January 12]], [[2001]]).<ref> [http://www.unhchr.ch/Huridocda/Huridoca.nsf/0/298628a9022c5e06c12569fb00576635?OpenDocument E/CN.4/2001/NGO/98], ''[[United Nations]]'', January 12, 2001 - URL accessed on February 9, 2007 {{es icon}}; [[ANSA]] cable quoted by the [[Rai|RaiNews24]]: [http://www.rainews24.rai.it/ran24/inchiesta/mk77.asp See frame on the right] {{it icon}}. See also [http://www.taringa.net/posts/110886/Copamiento-al-cuartel-de-La-Tablada.html presentation of the attack here] {{es icon}}, [http://www.lahistoriapensada.com.ar/index.php?id=61 La Historia Pensada] {{es icon}}, [http://www.pagina12.com.ar/1999/99-01/99-01-23/pag06.htm Los puntos oscuros del asalto a La Tablada], ''[[Página/12]]'', January 23, 1999 {{es icon}} </ref>
In [[Iraq]], the [[Saddam Hussein]] regime used white phosphorus, as well as chemical weapons that are scheduled in the [[Chemical Weapons Convention]], in the [[Halabja poison gas attack]] during the [[Iran-Iraq War]] in 1988, according to the [[ANSA]] news agency.<ref name=rai>
{{cite web
|url = http://www.rainews24.rai.it/ran24/inchiesta/en/video.asp
|title = Fallujah, The Hidden Massacre (see the video)
|author = Sigfrido Ranucci
|accessdate = 2007-04-04
}}</ref>
Another news report<ref>{{cite news
|title = US intelligence classified white phosphorus as 'chemical weapon'
|author = Peter Popham and Anne Penketh
|date = [[2005-11-23]]
|http://news.independent.co.uk/world/americas/article328703.ece
|accessdate = 2007-04-07}}</ref> said "US intelligence" called WP a chemical weapon in a declassified Pentagon report from February 1991:
:"Iraqi forces loyal to President Saddam may have possibly used white phosphorus chemical weapons against [[Iraqi Kurdistan|Kurdish]] rebels and the populace in [[Erbil]] and [[Dohuk]]. The WP chemical was delivered by artillery rounds and helicopter gunships."
but the actual declassified document<ref>{{cite web
| last = Joint Staff
| title = Possible Use of Phosphorus Chemical Weapons by Iraq in Kurdish Areas along the Iraqi-Turkish-Iranian Borders; and Current Situation of Kurdish Resistance and Refugees
| date= 1991
| url = http://www.gulflink.osd.mil/declassdocs/dia/19950901/950901_22431050_91r.html
| accessdate = }}</ref>
contains the words "WARNING: (U) THIS IS AN INFORMATION REPORT, NOT FINALLY EVALUATED INTELLIGENCE." By "information report", the document states it is not a reviewed product of the intelligence community. Further, the document's addressee codes all start with the letter R, which means that they are in the military operational community, not the Y-community that is reserved for the intelligence community (Chapter IV, Section 11).<ref>{{cite web
| last = Joint Staff
| title = Manual for Employing Joint Tactical Communications
| work = Joint Communications Security
| publisher = Organization of the Joint Chiefs of Staff
| date= 2 November 1998
| url = http://cryptome.sabotage.org/cjcsm623105a/cjcsm623105a.htm
| accessdate = 2007-09-25}}</ref>
=== Use in Iraq (2004) ===
{{main|White phosphorus use in Iraq}}
Use of WP against enemy areas in [[Fallujah]] were reported as early as April 2004:
:The boom kicked dust around the pit as they ran through the drill again and again, sending a mixture of burning white phosphorus and high explosives they call "shake 'n' bake" into a cluster of buildings where insurgents have been spotted all week.<ref name=nctimes/> However, an U.S. official release of December 2004 denied any WP use:
:''U.S. forces have used [phosphorus shells] very sparingly in Fallujah, for illumination purposes. They were fired into the air to illuminate enemy positions at night, not at enemy fighters.''<ref name=usinfo>
{{cite web
| title=Illegal Weapons in Fallujah - US Department of State
| url=http://usinfo.state.gov/media/Archive_Index/Illegal_Weapons_in_Fallujah.html
| date = [[2004-12-09]] updated [[2005-11-10]]
| accessdate = 2007-04-04
}}</ref>
This U.S. Department of State website carried an addendum in November 2005, replacing the previous statement with the comment:
:We have learned that some of the information we were provided in the above paragraph is incorrect. White phosphorus shells, which produce smoke, were used in Fallujah not for illumination but for screening purposes, i.e., obscuring troop movements and, according to [http://sill-www.army.mil/famag/2005/MAR_APR_2005/PAGE24-30.pdf an article in ... ''Field Artillery'' magazine]<ref>{{cite journal
| last = Cobb
| first = Captain James T.
| coauthors = First Lieutenant Christopher A. LaCour, Sergeant First Class William H. Hight
| title = TF 2-2 IN FSE AAR: Indirect Fires in the Battle of Fallujah
| journal =Field Artillery magazine,
| pages = 24–30
| date= March-April 2005
| url = http://sill-www.army.mil/famag/2005/MAR_APR_2005/PAGE24-30.pdf
| accessdate = 2007-09-25
}} </ref>, "as a potent psychological weapon against the insurgents in trench lines and spider holes…." The article states that U.S. forces used white phosphorus rounds to flush out enemy fighters so that they could then be killed with high explosive rounds.
The specific aspect of use against humans was highlighted<ref name=BBC-TV-Rai>
{{cite news
| title=US 'uses incendiary arms' in Iraq
| date=November 8,2005
| publisher=BBC
| url=http://news.bbc.co.uk/2/hi/middle_east/4417024.stm
}}</ref>
after the documentary film ''[[Fallujah, The Hidden Massacre]]'' by Sigfrido Ranucci was aired on Italy's [[Rai|RaiNews24]] and released on the internet.<ref name=rai/> In the film, [[Giuliana Sgrena]] quotes city refugees testimonies from [[Fallujah]] about the reported danger of weapons effects:
:In particular, some women had tried to enter their homes, and they had found a certain dust spread all over the house. The Americans themselves had told them to clean the houses with detergents, because that dust was very dangerous. In fact, they had some effect on their bodies, leading to some very strange things." <!--
"strange things" is emotional rather than informative. What things happened? Why is it believed they were unique to WP? -->
The film also shows U.S. soldiers on film admitting to WP use against insurgents. U.S. officials continued to deny the use of white phosphorus for antipersonnel purposes; U.S. ambassador to UK Robert Holmes Tuttle stated in November 2005, that U.S. forces "do not use napalm or white phosphorus as weapons".<ref> name="news.bbc.co.uk.nov30" </ref>
However, within a week of ambassador Tuttle's statement, on [[November 15]], Pentagon spokesman Lieutenant-Colonel Barry Venable confirmed to the [[BBC]] that WP had been used as an antipersonnel weapon, and was quoted as stating: "It has been used as an incendiary weapon against enemy combatants".<ref name=BBC-Venable>
{{cite news
|title = U.S. official admits phosphorus used as weapon in Iraq
|publisher = CBC News
|url =http://www.cbc.ca/story/world/national/2005/11/16/phosphorus-fallujah051116.html
|accessdate = 2007-04-04
|date = [[2005-11-16]]}}
</ref>
In particular,
:Venable pointed out that WP was effective against enemy forces in covered positions that were protected from high explosives. "One technique is to fire a white phosphorus round into the position because the combined effects of the fire and smoke—and in some case the terror brought about by the explosion on the ground—will drive them out of the holes so that you can kill them with high explosives.<ref name="news.independent.co.uk.490"/>
While WP use is legal for purposes such as illumination and obscuring smoke, the [[Chemical Weapons Convention]] does not list WP in its schedules of chemical weapons.
The March 2005 edition of the U.S. Army magazine ''[[Field Artillery (magazine)|Field Artillery]]'', contained an article on using white phosphorus as an "effective munition" for flushing out insurgents during the Fallujah attack of November 2004:
:“WP proved to be an effective and versatile munition. We used it for screening missions at two breeches and, later in the fight, as a potent psychological weapon against the insurgents in trench lines and spider holes when we could not get effects on them with HE (High Explosive) Rounds. We fired ‘shake and bake’ missions at the insurgents, using WP to flush them out and HE to take them out.”<ref name="Field Artillery">
{{citation
| title=The Fight for Fallujah (Nov 2004)
| pages = 24–46
| journal = [[Field Artillery (magazine)]]
| url = http://sill-www.army.mil/FAMAG/2005/MAR_APR_2005/PAGE24-30.pdf
| date = March-April 2005
| accessmonthday=December 4
| accessyear=2005
}}</ref>
On [[November 30]], [[2005]], General [[Peter Pace]] defended use of WP, declaring that WP munitions were a "legitimate tool of the military", used to illuminate targets and create smokescreens, and that there were better weapons for killing people:
:it is well within the law of war to use those weapons as they're being used, for marking and for screening... A bullet goes through skin even faster than white phosphorus does".<ref name="news.bbc.co.uk.nov30"/>
On [[June 22]], [[2007]] ''[[The New York Times|New York Times]]'' correspondent [[Michael R. Gordon]] was interviewed on National Public Radio in a story called "Baquba Residents Displaced by Insurgents" by Melissa Block and Michele Norris. In this interview, Gordon was asked about civilian casualties in Baquba, Iraq. He responded by saying "Yeah, there have been civilian casualties. I was just talking to our photographer and he had seen people who are hurt by phosphorus shells."<ref>{{cite web
| title=Baquba Residents Displaced by Insurgents (Jun 2007)
| author = NPR
| url = http://www.npr.org/templates/story/story.php?storyId=11259008
| accessmonthday=July 20 | accessyear=2007 }}
</ref> The photographer was not identified in the interview and the report was not corroborated.
=== 2006 Israel-Lebanon conflict ===
During the [[2006 Israel-Lebanon conflict]], Israel stated that it had used phosphorus shells "against military targets in open ground" in south Lebanon. Israel stated that its use of the white phosphorus bombs was permitted under international conventions.<ref>{{cite news
|url=http://news.bbc.co.uk/2/hi/middle_east/6075408.stm
|title=Israel admits phosphorus bombing
|date=22 October 2006|accessdate = 2006-10-24
|publisher=[[BBC]]
}}</ref>
According to a ''Haaretz'' article, [[President of Lebanon]] [[Émile Lahoud]] claimed that phosphorus shells were used against civilians in Lebanon. <ref>{{cite news
|url=http://www.haaretz.com/hasen/spages/777549.html
|title=Israel admits using phosphorus bombs during war Lebanon
|date=[[2006-10-22]]
|accessdate = 2007-04-04
|publisher=[[Haaretz]]}}
</ref> The first Lebanese official complaint about the use of phosphorus came from Information Minister Ghazi Aridi. <ref name=Aridi>{{citation
| date = July 17, 2006
| title = Lebanon claims Israel using banned weapons against civilians
| first = Jaime | last = Jansen
| journal = Paper Chase Newsburst, Jurist Legal News & Research
| publisher = University of Pittsburgh School of Law
}}</ref>
<!--Need pathological/forensic, not news media, source that this skin effect is characteristic of phosphorus. This description is characteristic of decomposition, but not described, in medical literature, as specific to phosphorus burns. ...Several media sources had reported they had seen Lebanese civilians with injuries characteristic of phosphorus:
:Dr. Hussein Hamud al-Shel, who works at Dar al-Amal hospital in Ba'albek, said that he had received three corpses "entirely shriveled with black-green skin," a phenomenon characteristic of phosphorus injuries.<ref>
{{Refimprove|date=January 2008}} As a reference for this NOT being characteristic of phosphorus but of normal decomposition, see Forensic Human Identification: An Introduction (Thompson & Black), Google preview at http://books.google.com/books?id=2o6iyCnwmDEC&pg=PT270&lpg=PT270&dq=decomposition+human+body+color+green+black+forensic+pathology&source=web&ots=OQ3BA4T5u6&sig=88sVf4ynIJSm0NDqKyjURW-eD0s-->
==Smoke-screening properties==
[[Image:USS Alabama (BB-8) 1921.jpg|thumb|[[USS Alabama (BB-8)|USS ''Alabama'']] hit by a white phosphorus bomb in bombing tests by General [[Billy Mitchell]], September 1921.]]
Weight-for-weight, phosphorus is the most effective [[smoke-screen]]ing agent known, for two reasons: first, it absorbs most of the screening mass from the surrounding [[Earth's atmosphere|atmosphere]] and secondly, the [[smoke]] particles are an [[Particulate|aerosol]], a [[mist]] of liquid droplets which are close to the ideal range of sizes for [[Mie theory|Mie scattering]] of [[visible light]]. This effect has been likened to [[Dimension|three dimensional]] textured privacy glass—the smoke cloud does not simply obstruct an image, but thoroughly scrambles both visual and infrared radiation.
When phosphorus burns in air, it first forms [[phosphorus pentoxide]] (which exists as tetraphosphorus decoxide except at very high temperatures):
: P<sub>4</sub> + 5 O<sub>2</sub> → P<sub>4</sub>O<sub>10</sub>
However phosphorus pentoxide is extremely [[hygroscopic]] and quickly absorbs even minute traces of moisture to form liquid droplets of [[phosphoric acid]]:
:P<sub>4</sub>O<sub>10</sub> + 6 H<sub>2</sub>O → 4 H<sub>3</sub>PO<sub>4</sub> (also forms [[Polyphosphate|polyphosphoric acids]] such as [[pyrophosphoric acid]], H<sub>4</sub>P<sub>2</sub>O<sub>7</sub>)
Since an [[atom]] of phosphorus has an [[atomic mass]] of 31 but a [[molecule]] of phosphoric acid has a [[molecular mass]] of 98, the cloud is already 68% by mass derived from the atmosphere (i.e. 3.2 kilograms of smoke for every kilogram of WP you started with); however, it may absorb more because phosphoric acid and its variants are [[hygroscopic]]. Given time, the droplets will continue to absorb more water, growing larger and more dilute until they reach equilibrium with the local water [[vapour pressure]]. In practice, the droplets quickly reach a range of sizes suitable for scattering visible light and then start to dissipate from wind or convection.
Because of the great weight efficiency of WP smoke, it is particularly suited for applications where weight is highly restricted, such as [[hand grenade#Smoke grenades|hand grenade]]s and [[mortar (artillery)|mortar]] bombs. An additional advantage for hand smoke grenades—which are more likely to be used in an emergency—is that the WP smoke clouds form in a fraction of a second. Because WP is also [[pyrophoric]], most munitions of this type have a simple burster charge to split open the casing and spray fragments of WP through the air, where they ignite spontaneously and leave a trail of rapidly thickening smoke behind each particle. The appearance of this cloud forming is easily recognised; one sees a shower of burning particles spraying outward, followed closely by distinctive streamers of white smoke, which rapidly coalesce into a fluffy, very pure white cloud (unless illuminated by a coloured light source).
Various disadvantages of WP are discussed below, but one which is particular to smoke-screening is "pillaring". Because the WP smoke is formed from fairly hot combustion, the gasses in the cloud are hot, and tend to rise. Consequently the smoke screen tends to rise off the ground relatively quickly and form aerial "pillars" of smoke which are of little use for screening. Tactically this may be counteracted by using WP to get a screen quickly, but then following up with emission type screening agents for a more persistent screen. Some countries have begun using red phosphorus instead. Red phosphorus ("RP") burns cooler than WP and eliminates a few other disadvantages as well, but offers exactly the same weight efficiency. Other approaches include WP soaked felt pads (which also burn more slowly, and pose a reduced risk of incendiarism) and PWP, or plasticised white phosphorus.
==Effects on humans==
White phosphorus can cause injuries and death in three ways: by burning deep into tissue, by being inhaled as a smoke, and by being ingested. Extensive exposure in any way can be fatal.
===Effects of exposure to WP weapons ===
Incandescent particles of WP cast off by a WP weapon's initial explosion can produce extensive, deep (second and third degree), burns. Phosphorus burns carry a greater risk of mortality than other forms of burns due to the absorption of phosphorus into the body through the burned area, resulting in liver, heart and kidney damage, and in some cases multi-organ failure.<ref name=ATSDR-WP>{{citation
| url = http://www.atsdr.cdc.gov/toxprofiles/tp103-c2.pdf
| chapter = White Phosphorus: Health Effects
| title = Toxicological Profile Information Sheet
| author = Agency for Toxic Substances and Disease Registry (ATSDR)}}</ref> These weapons are particularly dangerous to exposed people because white phosphorus continues to burn unless deprived of oxygen or until it is completely consumed. In some cases, burns may be limited to areas of exposed skin because the smaller WP particles do not burn completely through personal clothing before being consumed. According to [[GlobalSecurity.org]], quoted by ''[[The Guardian]]'', "White phosphorus results in painful chemical burn injuries"<ref name="www.globalsecurity.org.472">{{cite web | title=White Phosphorus (WP) (Global Security.org) | url=http://www.globalsecurity.org/military/systems/munitions/wp.htm | accessmonthday=December 4 | accessyear=2005 }}</ref> <!--see talk page; this quote has been added and deleted on and on.-->.
===Exposure and inhalation of smoke===
Burning WP produces a hot, dense white smoke. Most forms of smoke are not hazardous in the kinds of concentrations produced by a battlefield smoke shell. Exposure to heavy smoke concentrations of any kind for an extended period (particularly if near the source of emission) does have the potential to cause illness or even death.
WP smoke irritates the eyes and nose in moderate concentrations. With intense exposures, a very explosive cough may occur. However, no recorded casualties from the effects of WP smoke alone have occurred in combat operations and to date there are no confirmed deaths resulting from exposure to phosphorus smoke.
The Agency for Toxic Substances and Disease Registry has set an acute inhalation Minimum Risk Level (MRL) for white phosphorus smoke of 0.02 mg/m³, the same as fuel oil fumes. By contrast, the chemical weapon [[mustard gas]] is 30 times more potent: 0.0007 mg/m³
{{citation
| title=ATSDR - Minimal Risk Levels for Hazardous Substances (MRLs)
| url=http://www.atsdr.cdc.gov/mrls.html
| accessmonthday=December 4
| accessyear=2005
}}</ref>.
===Oral ingestion===
The accepted lethal dose when white phosphorus is ingested orally is 1 mg per kg of body weight, although the ingestion of as little as 15 mg has resulted in death.<ref name=toxic.0">
{{citation
| title=eMedicine - CBRNE - Incendiary Agents, White Phosphorus
| author = Lisandro Irizarry, MD, MPH, FAAEM
| url=http://www.emedicine.com/emerg/topic918.htm
| accessmonthday=December 4
| accessyear=2005
}}</ref>
It may also cause liver, heart or kidney damage.<ref name=ATSDR-WP> There are reports of individuals with a history of oral ingestion who have passed phosphorus-laden stool ("smoking stool syndrome")<ref name=toxic.0" />
==Arms control status and military regulations==
[[Image:White Phosphorous mortar round.jpg|thumb|A [[United States Air Force|USAF]] Security Police Squadron member packs an 81 mm white phosphorus smoke-screen mortar round during weapons training, 1980.]]
Article 1 of Protocol III of the [[Convention on Certain Conventional Weapons]] defines an incendiary weapon as 'any weapon or munition which is primarily designed to set fire to objects or to cause burn injury to persons through the action of flame, heat, or combination thereof, produced by a chemical reaction of a substance delivered on the target'. The same protocol also prohibits the use of incendiary weapons against civilians or in civilian areas.
However, the use against military targets outside civilian areas is not explicitly banned by any treaty. There is a debate on whether white phosphorus should be considered a chemical weapon and thus be outlawed by the [[Chemical Weapons Convention]] (CWC) which went into effect in April 1997. The convention is meant to prohibit weapons that are "dependent on the use of the toxic properties of chemicals as a method of warfare" (Article II, Definitions, 9, "Purposes not Prohibited" c.).
The convention defines a "toxic chemical" as a chemical "which through its chemical action on life processes can cause death, temporary incapacitation or permanent harm to humans or animals".(CWC, II). An annex lists chemicals that fall under this definitionm and WP is not listed in the Schedules of chemical weapons or precursors.<ref name="annexonchemicals">{{citation
| url = http://www.opcw.org/html/db/cwc/eng/cwc_annex_on_chemicals.html#b
| author = Organisation for the Prohibitions of Chemical Weapons
| title = Schedules of Chemicals
| format = {{dead link|date=June 2008}} – <sup>[http://scholar.google.co.uk/scholar?hl=en&lr=&q=intitle%3ASchedules+of+Chemicals&as_publication=&as_ylo=&as_yhi=&btnG=Search Scholar search]</sup>}}</ref>
<!--However, today, legal opinion may be shifting, according to some individual opinon: "there is potential for white phosphorus to fall under the classification of a chemical weapon"{{Fact|date=November 2007}} <ref name="eoinmacleod">[http://www.eoinmacleod.com Status of White Phosphorus in International Law] Cambridge University</ref>". Dead link, under student links-->
In an 2005 interview with [[RAI]], Peter Kaiser, spokesman for the [[Organisation for the Prohibition of Chemical Weapons]] (an organization overseeing the CWC and reporting directly to the UN General Assembly), questioned whether the weapon should fall under the convention's provisions:
:No it's not forbidden by the CWC if it is used within the context of a military application which does not require or does not intend to use the toxic properties of white phosphorus. White phosphorus is normally used to produce smoke, to camouflage movement.
:If that is the purpose for which the white phosphorus is used, then that is considered under the convention legitimate use.
:If on the other hand the toxic properties of white phosphorus are specifically intended to be used as a weapon, that of course is prohibited, because the way the convention is structured or the way it is in fact applied, any chemicals used against humans or animals that cause harm or death through the toxic properties of the chemical are considered chemical weapons".<ref name="news.bbc.co.uk.475"/>
Kaiser was a staff spokesman for the [[Organisation for the Prohibition of Chemical Weapons]].<ref name=OPCW>{{citation
| title = Organisation for the Prohibition of Chemical Weapons (OPCW)
| url = http://www.opcw.org/
| accessdate = 2007-09-25
}}</ref>.
The OPCW, using member votes, creates Schedules of chemical weapons or dual-use chemicals of concern and white phosphorus is not in any of these schedules.
The Convention on Certain Conventional Weapons, not the Chemical Weapons Convention, goes on, in its Protocol III, to prohibit the use of all air-delivered incendiary weapons against civilian populations, or for indiscriminate incendiary attacks against military forces co-located with civilians.<ref name="www.globalsecurity.org.476">
{{cite web
| title=Protocol III - Convention on Certain Conventional Weapons
|url=http://www.globalsecurity.org/military/library/policy/int/convention_conventional-wpns_prot-iii.htm
| accessmonthday=December 4|accessyear=2005
}}</ref>
However, that protocol also specifically excludes weapons whose incendiary effects are secondary, such as smoke grenades. This has often been read as excluding white phosphorus munitions from this protocol, as well. Several countries, including the United States and Israel, are not signatories to Protocol III.<ref name="tol17112005">{{citation
| first1 = David | last1 = Charter | first2= Michael | last2= Evans | first3= Richard | last3 = Beeston
| url = http://www.timesonline.co.uk/article/0,,7374-1875728,00.html
| title = Phosphorus was used for Fallujah bombs, admits US
| journal =The Times
| date = 17 November 2005
}}</ref>
The legal position however, is not the only consideration in any war. {{huh|May 2008}}<!--please identify the list of considerations that should be considered; the example seems to be one political opinion--> For instance, concerning the U.S. use of WP in Iraq, the British Liberal Democrat foreign affairs spokesman Sir Menzies Campbell, said
:"The use of this weapon may technically have been legal, but its effects are such that it will hand a propaganda victory to the insurgency. The denial of use followed by the admission will simply convince the doubters that there was something to hide".<ref>{{cite news
| title=Incendiary weapons: The big white lie
| date=November 17, 2005
| publisher=The Independent
| url=http://news.independent.co.uk/world/politics/article327543.ece
}}</ref>
===Military regulations===
[[Image:OV-10 Bronco firing White phosphorus.jpg|thumb|An [[OV-10 Bronco]] aircraft fires a white phosphorus smoke rocket to mark a ground target, 1984.]]
Within the US Army, there appears to be conflicting advice on the use of WP against humans. According to the field manual on the Rule of Land Warfare, "The use of weapons which employ fire, such as tracer ammunition, flamethrowers, napalm and other incendiary agents, against targets requiring their use is not violative of international law."<ref name="www.globalsecurity.org.478">
{{cite web
| title=FM27-10 :: Rule of Land Warfare (GlobalSecurity.org)
| url=http://www.globalsecurity.org/military/library/policy/army/fm/27-10/Ch2.htm
| accessmonthday=December 12
| accessyear=2005
}}</ref>
However, the ''[[ST 100-3 Battle Book]]'', a student text published by the US Command and General Staff College at [[Fort Leavenworth]] states that "It is against the law of land warfare to employ WP against personnel targets."<ref name="www.fas.org.478">{{cite web | title=5sect3 | url=http://www.fas.org/man/dod-101/army/docs/st100-3/c5/5sect3.htm | accessmonthday=December 4 | accessyear=2005 }}</ref>
At the same time, other field manuals discuss the use of white phosphorus against personnel.<ref name="atiam.train.army.mil.477">
{{cite web | title=FM 3-06.11 Appendix F | url=http://atiam.train.army.mil/soldierPortal/atia/adlsc/view/public/4651-1/fm/3-06.11/appf.htm | accessmonthday=December 12 | accessyear=2005 }}</ref>
==See also==
*[[Phosphorus]]
*[[Mark 77 bomb]]
*[[Fallujah, The Hidden Massacre]]
* [[Weapons of the 2003 invasion and occupation of Iraq]]
* [[Lal Masjid Siege]]
== References ==
{{reflist | 2}}
==External links==
*[http://law.bepress.com/expresso/eps/1959/ The Legality of the Use of White Phosphorus by the United States Military During the 2004 Fallujah Assaults] (Roman Reyhani)
*[http://www.globalsecurity.org/military/systems/munitions/wp.htm Globalsecurity.org on WP] (including use during the [[Operation Phantom Fury|Battle of Fallujah]] and during the December 1994 battle for [[Grozny]] during the [[First Chechen War]])
*{{cite news | title=Incendiary weapons: The big white lie | date=November 17, 2005 | publisher=The Independent | url=http://news.independent.co.uk/world/politics/article327543.ece}}
[[Category:Incendiary weapons]]
[[Category:Phosphorus]]
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