Who Is Responsible for Arming Islamic State?

Militant Islamist fighters on a tank take part in a military parade along the streets of northern Raqqa province June 30, 2014. Militant Islamist fighters held a parade in Syria's northern Raqqa province to celebrate their declaration of an Islamic "caliphate" after the group captured territory in neighbouring Iraq, a monitoring service said. The Islamic State, an al Qaeda offshoot previously known as Islamic State in Iraq and the Levant (ISIL), posted pictures online on Sunday of people waving black flags from cars and holding guns in the air, the SITE monitoring service said.  REUTERS/Stringer (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)

Militant Islamist fighters on a tank take part in a military parade along the streets of northern Raqqa province on June 30, 2014.  REUTERS/Stringer

By Susan Waltz, Military, Security, Police Co-Group, Amnesty International USA

Masked militants dressed head to toe in dark jumpsuits, lifting black flags and brandishing Kalashinov (AK-47) rifles: that is the now-iconic image of the armed group calling itself Islamic State (IS). Over the past few years IS has amassed a vast arsenal, which it has deployed to commit a staggering array of atrocities with open disregard for international human rights and humanitarian law. Without hesitation, the IS military campaign has targeted its small arms and artillery at civilians – abducting, torturing, raping, and summarily executing people across Iraqi and Syrian territory. SEE THE REST OF THIS POST