ISIS In Iraq: The Numbers Behind The Threat

ABC News gives you the numbers behind the terror group’s assault on Iraq.

— -- With millions of Iraqi citizens living in areas under ISIS control, Iraqi security forces along with Shiite militia groups have begun their largest assault on an ISIS stronghold yet.

All the while, U.S. troops continue to train and assist the Iraqi military and coalition war planes maintain their assaults on ISIS targets.

For more on ISIS in Iraq, watch the ABC digital original video above.