Diamond Jubilee of Elizabeth II II and her husband the Duke of Edinburgh, toured only the United Kingdom. Other parts of the Commonwealth were toured by her children and grandchildren as her representatives. At the 2011 Commonwealth Heads of Government Meeting in Perth, Australia, British Prime Minister David Cameron announced the creation of the Queen Elizabeth Diamond Jubilee Trust, which was officially launched in the UK on 6 February 2012. Chaired by former British prime minister Sir John Major, the trust was intended to support charitable organisations and projects across the Commonwealth of Nations, focusing on areas such as cures for diseases and the promotion
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