The long-anticipated campaign to reclaim Mosul from the Islamic State began Monday. It is the largest military operation in Iraq since U.S. forces left five years ago.
The Battle for Mosul
![Smoke rises from clashes in the east of Mosul during clashes with Islamic State militants, Iraq, Oct. 17, 2016.](https://gdb.voanews.com/9C708F89-4CF4-49EC-B7DF-065420952067_w1024_q10_s.jpg)
9
Smoke rises from clashes in the east of Mosul during clashes with Islamic State militants, Iraq, Oct. 17, 2016.