The Peshmerga are mostly divided among forces loyal to the Kurdistan Democratic Party (KDP) and those loyal to the Patriotic Union of Kurdistan (PUK), while other, minor Kurdish parties such as the Kurdistan Socialist Democratic Party also have their own small Peshmerga units. The KDP and PUK do not disclose information about the composition of their forces with government or media. Thus there is no reliable number of how many Peshmerga fighters exist. Media outlets have speculated that there are between 150,000 and 200,000 Peshmerga, but this number is highly disputed. Peshmerga have divided Kurdistan Region into a KDP-governed "yellow" zone covering Dohuk Governorate and Erbil Governorate and a PUK-governed "green" zone covering Sulaymaniyah Governorate and Halabja Governorate. Each zone has its own branch of Peshmerga with their own governing institutions that do not coordinate with the other branch.