Islamic State (IS) used mustard gas against Iraqi Kurds fighting in northern Iraq earlier this week, a US government source has told the Wall Street Journal (WSJ). The WSJ says the weapons must have come from a secret Syrian stash.
The German defence ministry said that around 60 Iraqi Kurd 'Peshmerga' fighters were reported to have throat injuries of the type caused by chemical weapons after an attack by IS late on Wednesday about 40 miles southwest of Erbil in northern Iraq.
Now the unnamed source tells the WSJ that the news confirms what US intelligence had already suspected: Syrian president Bashar al-Assad hid a secret stockpile of chemical weapons and these have fallen into the hands of IS.
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In 2013, Barack Obama and Vladimir Putin brokered a deal under which Assad supposedly destroyed all his chemical weapons but inspectors said later they had not been able to verify the destruction of mustard agent, which creates the gas.
Now IS has control of parts of Syria close to where Assad once stored chemical weapons, says the WSJ, suggesting his regime hid a cache of them. The other possibility is that they were found by IS in Iraq and date from Saddam Hussein's time.
In an editorial published last night, the WSJ decries two foreign policy "failures" of Barack Obama's presidency: the failure to ensure Assad destroyed his weapons and the failure to commit enough force to fighting IS.
The news is "worrisome", says the WSJ, marking a significant "upgrade" in IS's capabilities. Frontline Kurdish, Iraqi and moderate Syrians resisting the rise of IS's 'caliphate' are already complaining they don't get enough support from the US.
US intelligence agencies are still trying to work out how the mustard agent was 'delivered' on the battlefield.
There is no evidence yet that IS has obtained any more of the lethal chemical weapons Assad was known to possess, such as sarin or VX. However, it is believed that IS has already used chlorine gas in combat.
