Premiership of Margaret Thatcher Premiership of Margaret Thatcher Margaret Thatcher served as Prime Minister of the United Kingdom from May 1979 to November 1990. She became Prime Minister after serving as Leader of the Conservative Party since 1975. In domestic affairs, Thatcher is best known for her sweeping policies concerning the affairs of the economy, including the privatisation of most nationalised industries. In foreign policy, she fought a war against Argentina and played a key role with President Ronald Reagan and Soviet leader Mikhail Gorbachev in ending the Cold War. By the late 1980s, she was alienating many senior members of her Cabinet by
Diana Gould – Margaret Thatcher exchange she telephoned Tam Dalyell, a Labour MP who had been pressing for information about the sinking, and asked him to brief her. Thatcher and Sue Lawley, the anchor, were in the BBC's Lime Grove Studios in Shepherd's Bush, west London, where the prime minister took questions from 18:25 until 19:00. Gould, in the BBC's Bristol studio, was the fourth member of the public to be invited to speak. "Mrs. Thatcher," she asked, "why, when the Belgrano, the Argentinian battleship, was outside the exclusion zone and actually sailing away from the Falklands, why did you give the orders to sink it?"