Decades of reckless arms trading and the poorly regulated flow of weapons into Iraq have contributed to the Islamic State group's accumulation of a "vast and varied" arsenal which is being used to commit war crimes on a massive scale in Iraq and Syria, an international rights group said Tuesday.<br />IS swept across Iraq in the summer of 2014, capturing the second largest city, Mosul, and taking weapons left behind by fleeing Iraqi security forces, including U.S.-supplied arms and military vehicles.<br />"The vast and varied weaponry being used by the armed group calling itself Islamic State is a textbook case of how reckless arms trading fuels atrocities on a massive scale," said Amnesty researcher Patrick Wilcken .<br />"Poor regulation and lack of oversight of the immense arms flows into Iraq going back decades have given IS and other armed groups a bonanza of unprecedented access to firepower," he said.
