Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: More than 180,000 civilians have fled the west of the Iraqi city of Mosul in the past month, as government forces battle Islamic State (IS) militants.

Mosul battle: 180,000 civilians flee as Iraqi troops advance