In addition the KDP and PUK have used the Peshmerga to exert or attempt to exert a monopoly on the use of force within their zones. In 2011 KDP Peshmerga fired on anti-government protesters in Sulaymaniyah, and the PUK later used its own security forces to break up these protests, leading to criticism from all of the opposition parties in the parliament. In 2014 the KDP used its Peshmerga to stop ministers from the Gorran Movement to enter Erbil and attend parliament.