Currently, in addition to the four existing governorates within the Kurdistan Region (Erbil, Dahuk, Halabja and Sulaymaniyah), the KRG control parts of Nineveh Governorate, Kirkuk Governorate and Diyala Governorate. During the 2014 ISIL offensive, the KRG's peshmerga forces took over more of the disputed territories. Kirkuk Governorate, strategically important because of its oil fields, was retaken by Iraqi government forces in the Battle of Kirkuk (2017).