Washington - U.S.-backed forces fighting to drive Islamic State out of northern Syria have gathered a massive trove of documents and data belonging to the militant group, potentially shedding more light on its operations, a U.S. military official said on Wednesday.

The material, gathered as fighters moved from village to village surrounding the town of Manbij, includes notebooks, laptops, USB drives, and even advanced math and science textbooks rewritten with pro-Islamic State word problems, Colonel Chris Garver, the U.S. military spokesman in Iraq, said in a news briefing.

The U.S.-backed fighters - an alliance of Kurdish and Arab forces - have gathered more than 4 terabytes of digital information, and the material, most of it in Arabic, is now being analyzed by the U.S-led coalition fighting the militant group.

“It is a lot of material, it is going to take a lot to go through, then start connecting the dots and trying to figure where we can start dismantling ISIS,” Garver said, using an acronym for Islamic State.... Read More: VIN