Margaret Thatcher Foundation in 2006, where she established the Margaret Thatcher Center for Freedom. Margaret Thatcher Margaret Hilda Thatcher, Baroness Thatcher, (; 13 October 19258 April 2013) was a British stateswoman who served as Prime Minister of the United Kingdom from 1979 to 1990 and Leader of the Conservative Party from 1975 to 1990. She was the longest-serving British prime minister of the 20th century and the first woman to hold that office. A Soviet journalist dubbed her "The 'Iron Lady, a nickname that became associated with her uncompromising politics and leadership style. As Prime Minister, she implemented policies known as Thatcherism.
Margaret Thatcher rather in a "new relationship much wider than the Cold War ever was". She went on a state visit to the Soviet Union in 1984 and met with Gorbachev and Council of Ministers Chairman Nikolai Ryzhkov. Thatcher became closely aligned with the Cold War policies of US President Ronald Reagan, based on their shared distrust of Communism. A disagreement came in 1983 when Reagan did not consult with her on the invasion of Grenada. During her first year as Prime Minister she supported NATO's decision to deploy US nuclear cruise and Pershing II missiles in Western Europe, permitting the US