The jihadist terror group Islamic State of Iraq and al-Sham has become a powerful military force, wreaking havoc throughout Iraq. But ISIS is more powerful than just its estimated 10,000 fighters and ever-expanding weapons cache: It is also believed to control $2 billion in total assets.
The Guardian reports that the group, whose actions in Iraq could derail the world economy, began its sizable cash reserves with the acquisition of oilfields in eastern Syria. From there, ISIS grew its treasury by smuggling antiquities and resources out of the embattled state. The Guardian said the details were discovered from a trove of flash drives acquired by Iraqi officials less than two days before ISIS conquered Mosul—Iraq's second largest city.