Chemical Warfare
For more than 2,000 years human ingenuity has turned natural and synthetic poisons into weapons of war - Sarah Everts
HWN Suggests
Chemical warfare agents
The use of poisonous chemicals from plant extracts to poison individuals is widely documented throughout the Middle Ages and Renaissance, but it was not until the expansion of industrial chemistry in the 19th century that mass production and deployment of CW agents in war became a possibility. Thus, the birth of modern CW was ushered in by the German gas attack with chlorine on 22nd April 1915 at Ypres, Belgium. The use of these toxic chemicals, including phosgene, sulfur mustard and lewisites caused 100,000 deaths and 1.2 million casualties in World War I (WWI).[3] Millions of innocent civilians were killed by the Nazis with Zyklon B gas (hydrogen cyanide gas) during World War II. Agent Orange…
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The ocean is a giant dump for chemical weapons. Can we clean it up before it’s too late?
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Chemicals in War: Troy to Today
U.S. findings that Syria used chemical weapons against civilians and rebels are the latest evidence of a long history of the use of chemical and biological weapons in warfare—dating back to the Trojan War.
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We may not be able to stop Putin from using chemical weapons, but we can still avoid the fatal mistake we made a decade ago with al-Assad.
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Articles of Interest
'War of Nerves': A History of Chemical Weapons
By fall, the adversaries found themselves trapped in a bloody stalemate in which neither side was able to advance. Infantry offensives inevitably bogged down after taking negligible amounts of territory, at a heavy cost in lives. Seeking to break the deadlock and regain the offensive, the Germans began to consider the use of toxic chemicals delivered by artillery shells to force the enemy out of his trenches.
A Brief History of Chemical War
Three substances were responsible for most chemical-weapons injuries and deaths during World War I: chlorine, phosgene, and mustard gas.
A World War I Weapon Reappears in Syria
Chlorine is a widely available chemical with many perfectly legitimate industrial uses—water purification being the most well-known—and wasn’t included in Syria’s declaration of its chemical arsenal. It’s almost never used as a weapon today, and its appearance in Syria harkens back to the earliest days of chemical warfare.
Are Chemical Weapons Actually Useful in a War?
The answer is that, today, they're not a particularly effective way of killing people. Chemical warfare came of age in the First World War, in many ways the ideal environment for it to thrive—soldiers back then were sitting ducks, massed together in low-lying trenches, static targets for weeks or months at a time.
Breaking Down Chemical Weapons, One Fact At A Time
The Organisation for the Prohibition of Chemical Weapons, or OPCW, defines chemical weapons as "any toxic chemical or its precursor that can cause death, injury, temporary incapacitation or sensory irritation through its chemical action." The delivery devices for the chemicals, filled or unfilled, "are also considered chemical weapons themselves."
Gas in The Great War
One of the enduring hallmarks of WWI was the large-scale use of chemical weapons, commonly called, simply, ‘gas’. Although chemical warfare caused less than 1% of the total deaths in this war, the ‘psy-war’ or fear factor was formidable. Thus, chemical warfare with gases was subsequently absolutely prohibited by the Geneva Protocol of 1925. It has occasionally been used since then but never in WWI quantities.
How Gas Became A Terror Weapon In The First World War
The trench warfare of the Western Front encouraged the development of new weaponry to break the stalemate. Poison gas was one such development. The first significant gas attack occurred at Ypres in April 1915, when the Germans released clouds of poisonous chlorine. The gas inflicted significant casualties among the British and Canadian forces at Ypres and caused widespread panic and confusion amongst the French colonial troops.
How the Shocking Use of Gas in World War I Led Nations to Ban It
After early failed efforts by the French and German armies to use tear gas and other irritants in battle, the first successful gas attack was launched by the Germans against the British at the Second Battle of Ypres on April 22, 1915.
How to tweak drug-design software to create chemical weapons
Just ask the program to enhance, rather than reduce, toxicity.
Investigation of Chlorine Gas, Phosgene Gas, and Mustard Gas: Development, Use, Effects, and Treatments with a Focus on World War I
The German attack in Ypres on April 22, 1915 ushered in a new era of warfare. For the first time in military history, large amounts of weaponized gas were being deployed. The first attack utilized chlorine gas while subsequent attacks used phosgene gas, mustard gas, or a combination of them.
The disturbing history of how tear gas became the weapon of choice against protesters
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The Use Of Chlorine Gas Is A War Crime
The use of chlorine gas was banned by the Geneva Convention in 1925. This was in response to the use of chemical weapons during World War I, where both sides used chlorine gas against each other. The effects of chlorine gas are very painful and can be fatal, so the use of this weapon is considered a war crime.
What are the most common types of chemical warfare agent (CWA)?
Chemical warfare agents (CWAs) are highly toxic chemicals that have been used in modern military conflicts dating back to the First World War. In the last couple of decades however, particularly close attention has been paid to the acute and chronic health effects associated with exposure to these agents.
What Could Possibly Motivate a Chemical-Weapons Attack?
Assad is proving that the international taboo against chemical weapons is effectively a sham.
What Is Chlorine Gas and How Did It Become a Weapon?
Fritz Haber (1868-1934) knew about the toxicity of chlorine when he chose it as his agent of warfare in 1915. He had already come up with the Haber-Bosch process, patented in 1910, for the fixation of nitrogen as ammonia, which won him the 1918 Nobel Prize in chemistry. This made the manufacture of artificial fertilizers possible and the survival of millions of people today depends on it.
Why America Cares About Chemical Weapons
Upholding the norm against their use helps the U.S. win wars.
Why Chemical Weapons Are Different
Blistering skin, eye damage, and excruciating deaths were just some of the reasons nations decided to ban these substances after World War I.

