Before they were driven out of Qayarah, IS militants destroyed a refinery that powered the economy of Ninewa province. Now, it's a focal point in efforts to rebuild.
Pushing into Mosul's eastern suburbs, special forces are weathering deadly counter-attacks as they gird for weeks of tough urban warfare.
After a scorched-earth retreat toward Mosul, IS militants leave behind a public health crisis and a population reeling from two years of brutality.
Even as they lose ground around Mosul, IS militants showed their capacity for guerilla warfare, deploying 100-man squads to exploit security gaps in Kirkuk and Anbar.