Kirkuk, Iraq has become a centerpiece in the Iraqi government's rejection of the overwhelmingly successful Kurdish Independence Referendum
Monday, Iraq took control of Kirkuk, which has been under Kurdish control since they took it from ISIS in 2014
as Iraqi forces fled. It is surprising that the Kurds did not stand and fight for the hard-won Kirkuk, but it's not yet clear this was the case as there have been reports of gunfire and "clashes" in the city. The resistance by Kurdish forces appears to have been somewhat minimal.
The BBC reports
The Iraqi military moved into Kirkuk three weeks after the Kurdistan Region held a controversial independence referendum.