Gas mask

The Iraqi army destroys what it says is an IED planted by ISIS containing chlorine gas in March 2015.

A century after its first-ever use, the original chemical weapon has made a comeback

Conflict

It’s been exactly 100 years since the world saw the first deadly attack with chemical weapons. The Germans deployed tons of chlorine gas on a sector of the Western front in World War I, causing 6,000 casualties. Now chlorine gas is back on the battlefield, in Syria.

The World

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