Name: Chemical weapons: a brief history from WWI to Syria
Uploaded: Mon Apr 09 2018 20:16:48 GMT+0000 (UTC)
Duration: 3 min 2 s
Description: Chemical weapons can be both powerful and terrifying. From the chemical-soaked battlefields in WWI, to cities in Syria, here is a look at their role in the last 100 years of modern warfare.

April 9, 201803:02

A brief history of chemical weapons