Well poisoning is the act of malicious manipulation of potable water resources in order to cause illness or death, or to deny an opponent access to fresh water resources.
Well poisoning has been historically documented as a strategy during wartime since antiquity, and was used both offensively (as a terror tactic to disrupt and depopulate a target area) and defensively (as a scorched earth tactic to deny an invading army sources of clean water). Rotting corpses (both animal and human) thrown down wells were the most common implementation; in one of the earliest examples of biological warfare, corpses known to have died from common transmissible diseases of the Pre-Modern era such as bubonic plague or tuberculosis were especially favored for well-poisoning.
Well poisoning has been used as an important scorched earth tactic at least since medieval times. In 1462, for example, Prince Vlad III the Impaler of Wallachia utilized this method to delay his pursuing adversaries. Nearly 500 years later during the Winter War, the Finns rendered wells unusable by planting animal carcasses or feces in them in order to passively combat invading Soviet forces.[1]
During the 20th century, the practice of poisoning wells has lost most of its potency and practicality against an organized force as modern military logistics ensure secure and decontaminated supplies and resources. Nevertheless, German forces during First World War poisoned wells in France as part of Operation Alberich.[2] A few religions have laws condemning such scorched earth tactics. Most notably Islam, in its scripture, dictates that water-bodies may not be poisoned even during a battle and enemies must be allowed access to water.[citation needed]
Israel poisoned the wells and water supplies of certain Palestinian towns and villages as part of their biological warfare program during the 1948 Palestine war, including a successful operation that caused a typhoid epidemic in Acre in early May 1948, and an unsuccessful attempt in Gaza that was foiled by the Egyptians in late May.[4]
In the late 20th century, accusations of well-poisoning were brought up, most notoriously in relation to the Kosovo Liberation War.[5][6][7] In the 21st century, Israeli settlers have been condemned due to accusations in the Occupied Territories.[8][9][10]
Despite some vague understanding of how diseases could spread, the existence of viruses and bacteria was unknown in medieval times, and the outbreak of disease could not be scientifically explained. Any sudden deterioration of health was often blamed on poisoning. Europe was hit by several waves of Black Death throughout the late Middle Ages. Crowded cities were especially hard hit by the disease, with death tolls as high as 50% of the population. In their distress, emotionally distraught survivors searched desperately for an explanation. The city-dwelling Jews of the Middle Ages, living in walled-up, segregated ghetto districts, aroused suspicion.[11] An outbreak of plague thus became the trigger for Black Death persecutions, with hundreds of Jews burned at the stake, or rounded up in synagogues and private houses that were then set aflame. With the decline of plague in Europe, these accusations lessened, but the term "well-poisoning" remains a loaded one that continues to crop up even today among anti-Semites around the world.
Walter Laqueur writes in his book The Changing Face of Anti-Semitism: From Ancient Times to the Present Day:
There were no mass attacks against "Jewish poisoners" after the period of the Black Death, but the accusation became part and parcel of antisemitic dogma and language. It appeared again in early 1953 in the form of the "doctors' plot" in Stalin's last days, when hundreds of Jewish physicians in the Soviet Union were arrested and some of them killed on the charge of having caused the death of prominent Communist leaders... Similar charges were made in the 1980s and 1990s in radical Arab nationalist and Muslim fundamentalist propaganda that accused the Jews of spreading AIDS and other infectious diseases.[12]
In his address to the European Parliament on 23 June 2016, in Brussels, Palestinian Authority president and PLO chairman Mahmoud Abbas made an unsubstantiated allegation, "accusing rabbis of poisoning Palestinian wells".[14] This was based on false media reports saying Israeli rabbis were inciting the poisoning of water of Palestinians, led by a rabbi Shlomo Mlma or Mlmad from the Council of Rabbis in the West Bank settlements. A rabbi by that name could not be located, nor is such an organization listed.[15]
Abbas said: "Only a week ago, a number of rabbis in Israel announced, and made a clear announcement, demanding that their government poison the water to kill the Palestinians ... Isn't that clear incitement to commit mass killings against the Palestinian people?"[16]
The speech received a standing ovation.[14][15][17] The speech was described as "echoing anti-Semitic claims".[17] A day later, on Saturday 26 June, Abbas admitted that "his claims at the EU were baseless".[18][19] Abbas' further said that he "didn't intend to do harm to Judaism or to offend Jewish people around the world."[20] Israeli Prime Minister Benjamin Netanyahu stated in reaction, that Abbas had spread a "blood libel" in his European Parliament address.[20][21]
^Trotter, William R. (2003). The Winter War, the Russo-Finnish War of 1939–40. London 2003: Aurum Press Ltd. ISBN1-85410-932-4.{{cite book}}: CS1 maint: location (link)
^Murray, Williamson; Lacey, Jim (eds.). The Making of Peace: Rulers, States, and the Aftermath of War. Cambridge University Press. p. 218.
^Morris & Kedar 2023, pp. 752–776, "[p. 752] Taken together, these documents revealed that the Acre and Gaza episodes were merely the tip of the iceberg in a prolonged campaign ... But bulldozing or blowing up houses and wells was deemed insufficient. With its back to the wall, the Haganah upped the ante and unleashed a clandestine campaign of poisoning certain captured village wells with bacteria – in violation of the Geneva Protocol ... The aim of Cast Thy Bread ... like the demolitions, was to hamper an Arab return. Over the weeks, the well-poisoning campaign was expanded to regions beyond the Tel Aviv-Jerusalem road and included Jewish settlements captured or about to be captured by Arab troops, and then to inhabited Arab towns, to facilitate their prospective conquest by the Haganah or to hinder the progress of the invading Arab armies ... [p. 768] The Yishuv’s decision to use the bacteriological weapons was taken at the highest level of the government and military and was, indeed, steered by these officers, with Ben-Gurion’s authorization, through the campaign ... [p. 769] The use of the bacteria was apparently fairly limited in Israel/Palestine during April-December 1948, and apart from Acre, seems to have caused no epidemic and few casualties. At least, that is what emerges from the available documentation.";
Nashef 2018, p. 143 n. 4 (quoting Pappe 2006);
Carus 2017, p. 145, "Some BW programs relied on extremely crude methods, about as sophisticated as those employed by some terrorist groups or criminals ... The same was true of the reported activities associated with the early Israeli program in 1948.";
Docker 2012, pp. 19–20, "The urbicide of May 1948 directed against the old Crusader city of Acre involved biological warfare, including poisoning of water, Pappé writing that it seems clear from Red Cross reports that the Zionist forces besieging the city injected ‘typhoid germs’ into the water supply, which led to a ‘sudden typhoid epidemic’. There was a similar attempt to ‘poison the water supply in Gaza’ on 27 May 1948 by injecting typhoid and dysentery viruses into wells; this attempt was fortunately foiled.";
Martin 2010, p. 7, "Israeli biological warfare activities included Operation Shalach, which was an attempt to contaminate the water supplies of Egyptian Army. Egypt reports capture of four ‘Zionists’ trying to infect wells with dysentery and typhoid. There are also allegations that a typhoid outbreak in Acre in 1948 resulted from a biological attack and that there were attacks in Egypt in 1947 and in Syria in 1948.";
Sayigh 2009, "A unit had been formed to develop biological weapons, and there is evidence that these were used during 1948 to poison the water supplies of Akka and Gaza with typhoid bacteria.";
Ackerman & Asal 2008, p. 191, "Egyptian Ministry of Defense and, later, Israeli historians, contend that Israeli soldiers contaminated Acre’s water supply.";
Pappe 2006, pp. 73–4 ("The flame-thrower project was part of a larger unit engaged in developing biological warfare under the directorship of a physical chemist called Ephraim Katzir ... The biological unit he led together with his brother Aharon, started working seriously in February [1948]. Its main objective was to create a weapon that could blind people.") and 100–101 ("During the siege [of Acre] typhoid germs were apparently injected into the water. Local emissaries of the International Red Cross reported this to their headquarters and left very little room for guessing whom they suspected: the Hagana. The Red Cross reports describe a sudden typhoid epidemic and, even with their guarded language, point to outside poisoning as the sole explanation for this outbreak ... A similar attempt to poison the water supply in Gaza on 27 May was foiled.");
Abu Sitta 2003, "The Zionists injected typhoid in the aqueduct at some intermediate point which passes through Zionist settlements ... The city of Acre, now burdened by the epidemic, fell easy prey to the Zionists. ... Two weeks later, after their "success" in Acre, the Zionists struck again. This time in Gaza, where hundreds of thousands of refugees had gathered after their villages in southern Palestine were occupied. The end however was different. ... The biological crimes perpetrated against the Palestinians in Acre and Gaza in 1948 are still being enacted today.";
Leitenberg 2001, p. 289, "As early as April 1948, Ben Gurion directed one of his operatives in Europe (Ehud Avriel) to seek out surviving East European Jewish scientists who could “either increase the capacity to kill masses or to cure masses: both things are important.” At that time, that ‘capacity’ meant chemical and biological weapons ... These were ultimate weapons that could be used either for offense or defense (and the context of the immediate military operations, as well as those that had preceded it, would be the critical factors in that categorization).";
Cohen 2001, p. 31, "It is believed that one of the largest operations in this campaign was in the Arab coastal town of Acre, north of Haifa, shortly before it was conquered by the IDF on May 17,1948. According to Milstein, the typhoid epidemic that spread in Acre in the days before the town fell to the Israeli forces was not the result of wartime chaos but rather a deliberate covert action by the IDF—the contamination of Acre's water supply ... The success of the Acre operation may have persuaded Israeli decisionmakers to continue with these activities. On May 23, 1948, Egyptian soldiers in the Gaza area caught four Israeli soldiers disguised as Arabs near water wells ... It seems that many people knew something about these operations, but both the participants and later historians chose to avoid the issue, which gradually became a national taboo ... Despite the official silence, it appears there is little doubt now about the mission of the failed Gaza operation."
^Barzilay, Tzafrir. Poisoned Wells: Accusation, Persecution and Minorities in Medieval Europe, 1321-1422, Philadelphia: University of Pennsylvania Press, 2022.