Prime Minister of New Zealand signed a number of international treaties. In 1967, Keith Holyoake became the first New Zealand prime minister to select candidates for the position of governor-general without any involvement of the British government. Holyoake advised the monarch, Queen Elizabeth II, to appoint Sir Arthur Porritt, the first New Zealand–born governor-general. After the mixed-member proportional (MMP) system was introduced in 1996, prime ministers have had to manage minority governments. The skill of MMP management was exemplified by Helen Clark's nine years as prime minister (1999–2008), when her Labour Party remained in power thanks to a range of confidence and supply agreements with
Prime Minister of Iraqi Kurdistan lasted until 1998. This resulted in the establishment of two Kurdistan Regional Governments in 1996, a KDP-controlled one in Erbil and a PUK-controlled one in Sulaymaniyah, each with their own Prime Minister. After the reconciliation between the KDP and PUK, parliamentary election were held on January 30, 2005 and an agreement was made to let a KDP leader become Prime Minister for the first term and a PUK Prime Minister to become President for the second term, so Nechervan Barzani became Prime Minister. Barham Salih held the post of Prime Minister until 17 January 2012 after which he relinquished his