The Real Purpose Behind the "Liberation" of Mosul? by Robert Fisk

Ref: http://www.informationclearinghouse.info/article45702.htm
When Mosul falls, Isis will flee to the safety of Syria. But what then?
The entire Isis caliphate army could be directed against the Assad government and its allies – a scenario which might cause some satisfaction in Washington.

Syria’s army and Hezbollah and Iranian allies are preparing for a massive invasion by thousands of Isis fighters who will be driven out of Iraq when Mosul falls. The real purpose behind the much-trumpeted US-planned "liberation" of the Iraqi city, the Syrian military suspect, is to swamp Syria with the hordes of Isis fighters who will flee their Iraqi capital in favour of their "mini-capital" of Raqqa inside Syria itself.
Read further: http://www.informationclearinghouse.info/article45702.htm