On the Front Lines in the Fight Against ISIS

— -- As ISIS militants reportedly destroyed priceless antiquities at the ancient city of Nimrud this week and Iraqi forces ramped up their battle against the militants, ABC News’ Chief Global Affairs Correspondent Martha Raddatz went to the front lines.

Near Abu Ghraib in Anbar Province, Iraqi forces patrolled in American-made Humvees and fired howitzers at ISIS targets. But just past Iraqi defense embankments, an ISIS-held factory and vast ISIS territory were visible to the naked eye -- a testament to how close the battle is being waged.