There are claims the so-called Islamic State militant group is making its own chemical weapons.

Mustard gas itself was out of the question, but the doctors came up with an alternate chemical called nitrogen mustard, and started looking for test cases.

A war weapon used in World War One went on to become a key component in treating blood cancer with chemotherapy ...

In 53 years of Assad family rule, Syria’s government made chemical weapons by the ton, from giant vats of World War I-era mustard gas to nerve agents so deadly that just a few drops could kill.

Inhalation of mustard gas can cause chest pain, coughing, and shortness of breath and can lead to death. (Also see, the government is worried about these biological weapons.) ...

At the rate of one or two a year, World War II-era chemical weapons, often with mustard gas inside, keep turning up in Delaware.

The final round of America's largest stockpile of Cold War-era mustard gas shells has been destroyed, bringing the country closer to fulfilling a nearly three-decade-old treaty banning chemical ...

The number, far higher than any previous estimate, poses a test for the new government. Experts fear that sarin, chlorine and mustard gas stockpiles could be unsecured.

Empty canisters that contained mustard gas, which were part of the United States' chemical weapons stockpile, sit at the U.S. Army Pueblo Chemical Depot on June 8, 2023, in Pueblo, Colo. (David ...

Iran has developed chemical weapons based on synthetic opioids such as fentanyl, warns a US expert, powerful agents that could incapacitate soldiers or civilians when added to grenades or artillery.

In Pueblo, Colorado, the US is destroying between 600 and 700 4.2 in (107 mm) mortars containing sulfur mustard, also called mustard gas, a chemical warfare agent that was used in both World Wars ...

In 53 years of Assad family rule, Syria’s government made chemical weapons by the ton, from giant vats of World War I-era mustard gas to nerve agents so deadly that just a few drops could kill ...