Tony Blair was prime minister of Great Britain and Northern Ireland between 1997 and 2007. The only Labour leader in the party's 100-year history to win three consecutive elections, he led a government whose achievements ranged from wholesale domestic reform, to a major programme of overseas aid and development, to the securing of the historic Good Friday Agreement in Northern Ireland. After leaving office he founded the not-for-profit Tony Blair Institute (TBI) in the conviction that a country's success and ability to enact transformational change is dependent on the effectiveness of its leadership and governance. Under his direction the Institute works with political leaders around the world, advising on strategy, policy and delivery - and on the use of technology to drive all three.