The Islamic State began a program in 2014 to make chemical weapons using both chlorine and a World War I-era toxin known as sulfur mustard.
You can find the VIDEO (0:38) of the attack here.
The Islamic State began a program in 2014 to make chemical weapons using both chlorine and a World War I-era toxin known as sulfur mustard.
You can find the VIDEO (0:38) of the attack here.