Helen Clark was Prime Minister of New Zealand for three successive terms from 1999-2008. She was the first woman to become Prime Minister following a General Election in New Zealand and the second woman to serve as Prime Minister. Throughout her tenure as Prime Minister and as a Member of Parliament over 27 years, Helen Clark engaged widely in policy development and advocacy across the international affairs, economic, social, environmental, and cultural spheres. She advocated strongly for a comprehensive programme on sustainability for New Zealand and for tackling the challenges of climate change. She was an active leader of her country's foreign relations, engaging in a wide range of international issues. In April 2009, Helen Clark became Administrator of the United Nations Development Programme. She was the first woman to lead the organisation, and served two terms there. At the same time, she was Chair of the United Nations Development Group, a committee consisting of all UN funds, programmes, agencies, and departments working on development issues. As Administrator, she led UNDP to be ranked the most transparent global development organisation. She completed her tenure in April 2017.