Several news sources are announcing that the Iraqi Army has taken complete control of the government complex in Ramadi and ISIS has 'been defeated in Ramadi.'Update.
The Iraqis say they have central Ramadi surrounded. However given the complex urban environment, and the less then capable Iraqi forces, I have some doubts as to just how tight the net is.
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Iraqi soldiers entered the complex after sniper fire from the area had stopped and ISTAR assets showed no movement. It appears that despite the Army's cordon IS militants have escaped to the Northeast of the complex.
This seems to be in keeping with previously observed defensive actions in which ISIS declined to fight an intensive urban battle. Urban areas are denied with the use of IEDs and attackers delayed and attrited by suicide bombers and snipers, with main body forces withdrawn rather than risking decisive engagement.
Whether we see ISIS re-infiltration once Iraqi Army forces have handed over to police and local forces and moved on towards Mosul is another question. From what I've seen it would appear neither side are prepared to invest heavily in defending urban centres.
Iraqi forces 'retake Islamic State Ramadi stronghold' - BBC News
Iraqi forces seize Islamic State stronghold in Ramadi: spokesman | Reuters
https://www.stratfor.com/situation-report/iraq-troops-enter-government-compound-ramadi