Even if they have 50% potency they could scare an urban center into surrender. It wouldn’t take much. They could use it on the Kurds, the Iranians, Jourdan, Iraq. As a weapon of terror—they have greater value than as a military weapon. They IS are fighting a political terror war (the same way Gengis Khan waged and Tamurlane and the Japanese in China).
It appears however that they do not worship money. They worship a very old book and want to remove the wealthy elites who are running the Middle East. Perhaps they will bankrupt them first. Their leader claims to be the heir apparent to Bin Laden, and ole Bin did want to attack Wall Street to bring down the western money powers aligned with the Middle Eastern money powers.
>>Even if they have 50% potency they could scare an urban center into surrender. It wouldnt take much. <<
If you believe this you are a coward. I will never surrender to any attacker. I refuse to kneel for any man. Stand up and fight like a man or live like a slave on your knees.