Third Thatcher ministry Third Thatcher ministry Margaret Thatcher was Prime Minister of the United Kingdom from 4 May 1979 to 28 November 1990, during which time she led a Conservative government. She was the first woman to hold that office. During her premiership, Thatcher moved to liberalise the British economy through deregulation, privatisation, and the promotion of entrepreneurialism. This article details the third government Thatcher led at the invitation of Queen Elizabeth II from 1987 to 1990. The Conservatives were elected for a third successive term in June 1987, with a majority of 102 seats. It enabled Margaret Thatcher to become the longest-serving
Premiership of Margaret Thatcher 1989, Lawson and Foreign Secretary Geoffrey Howe forced Thatcher to agree to the circumstances under which she would join the Exchange Rate Mechanism. At the meeting, they both threatened they would resign if their demands were not met. Thatcher responded by moving Howe to Leader of the House of Commons (despite giving him the title Deputy Prime Minister he was now effectively removed from decision-making over Europe) and by listening more to her adviser Sir Alan Walters on economic matters. Lawson resigned that October, feeling that Thatcher had undermined him. Thatcher continued to be the leading international advocate of a