Wikimedia Commons/Underwood & Underwood The 1932 Bonus Army Eviction from the Lincoln Memorial World War I veterans came to ...

Two Dutch intelligence agencies said on Friday that Russia is increasing its use of prohibited chemical weapons ...

Chloropicrin is banned in war under the 1993 Chemical Weapons Convention (CWC), to which Moscow is a signatory. Russia is already widely using tear gas, the Dutch Defense Ministry said, and called the ...

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

In 1914 a chemist called Fritz Haber offered his knowledge to the German Army. He soon began experimenting with chlorine gas to be used in trench warfare.

The First World War was well underway when — on April 22, 1915 — the German army released more than 136 tonnes of chlorine gas.

A former army commander says gas masks made in Britain could help Ukrainians defend their country. Avon Protection, in Melksham, Wiltshire, makes "world-leading" masks, which are being requested ...

Wounds and mustard gas could not stop Medal of Honor recipient Lt. Orlando Petty in 1918, but they may have caught up with him in 1932.

The Ukrainian military is distributing gas masks and conducting drills to prepare soldiers to defend their position during such attacks.