Question: What major political events happened the same year that an English humanitarian and author was kidnapped and held hostage for four years?

full_context: Document 1: Commonwealth Heads of Government Meeting 1986: The Commonwealth Heads of Government Meeting 1986 was the ninth Meeting of the Heads of Government of the Commonwealth of Nations. It was held in London, the United Kingdom, between 3 August 1986 and 5 August 1986, and was hosted by that country's Prime Minister, Margaret Thatcher. This was a special meeting held in between the biennial CHOGMs in order to consider the recommendations of the Commonwealth Eminent Persons Group regarding economic sanctions against South Africa due to its policies of apartheid. British prime minister Margaret Thatcher's refusal to support mandatory sanctions resulted in an acrimonious meeting and almost led to a split in the Commonwealth.
Document 2: Tayfour bathaii: Tayfour Bathaii(born March 8, 1947), writer, film director, activist, was born in Sanandaj, Iran. After finishing high school in Sanandaj, he started his 2-year mandatory military services as a teacher. From 1969 to 1972, he attended the Tehran School of Television and Cinema to become a TV cameraman. In the 70's, due to his leftist tendencies and alleged affiliation with the "Group of 12" accused of plotting to kidnap Farah Pahlavi, the Queen of Iran, and the crown prince, he was tried and sentenced to life in prison. During the revolution of 1979 in Iran, along with other political prisoners, he was released and returned to Sanandaj, a Provence of Kurdistan, Iran. He joined the Democratic Party of Kurdistan and was a member of this party until 1985. He has continued his life in Sweden since then as a political activist, writer, sculptor, and film director. He also teaches cinema and documentary cinematography.
Document 3: Premiership of Tony Blair: The premiership of Tony Blair began on 2 May 1997 and ended on 27 June 2007. Whilst serving as Prime Minister of the United Kingdom, Blair concurrently served as the First Lord of the Treasury, the Minister for the Civil Service, the Leader of the Labour Party (until Gordon Brown was declared Labour leader on 24 June 2007), and a member of parliament for the constituency of Sedgefield in County Durham. He remains a Privy Counsellor having first been appointed in July 1994 when he became Leader of the Opposition. Tony Blair is the Labour Party's longest-serving Prime Minister, and having led the party to three consecutive general election victories, the only Labour prime minister to serve two full consecutive terms.
Document 4: Death and funeral of Margaret Thatcher: Baroness Thatcher died of a stroke in London on 8 April 2013 at the age of 87. On 17 April, the former Prime Minister was honoured with a ceremonial funeral. Due to the polarised view of her achievements and legacy, reaction to her death was mixed throughout the United Kingdom, with her memory evoking both intense praise and criticism. The funeral, including a formal procession through Central London, followed by a church service at St Paul's Cathedral, cost around £3.6 million including £3.1 million for security. The funeral was notable for the attendance of Queen Elizabeth II. All four of her successors as Prime Minister paid homage at the funeral. Her body was cremated at Mortlake Crematorium following the funeral.
Document 5: James Callaghan: Leonard James Callaghan, Baron Callaghan of Cardiff, {'1': ", '2': ", '3': ", '4': "} (27 March 1912 – 26 March 2005), often known as Jim Callaghan, was a British politician who served as Prime Minister of the United Kingdom from 1976 to 1979 and Leader of the Labour Party from 1976 to 1980. Callaghan is to date, the only British politician in history to have served in all four of the "Great Offices of State", having been Chancellor of the Exchequer from 1964–67, Home Secretary from 1967-70, and Foreign Secretary from 1974, until his appointment as Prime Minister in 1976. As Prime Minister, he had some successes, but is mainly remembered for the "Winter of Discontent" of 1978–79. During a very cold winter, his battle with trade unions led to massive strikes that seriously inconvenienced the public, leading to his defeat in the polls by Conservative leader Margaret Thatcher.
Document 6: John Major: Sir John Major, {'1': ", '2': ", '3': ", '4': "} (born 29 March 1943) is a British politician who was Prime Minister of the United Kingdom and Leader of the Conservative Party from 1990 to 1997. He served as Foreign Secretary and then Chancellor of the Exchequer in the Thatcher Government from 1989 to 1990, and was the Member of Parliament (MP) for Huntingdon from 1979 until he retired in 2001. Since Margaret Thatcher's death in 2013, he is the oldest living former Prime Minister.
Document 7: Terry Swartzberg: Terry Swartzberg (born July 22, 1953 in Norwalk, Connecticut) is an American PA (public affairs) campaigner and journalist. He is based in Munich, Germany and contributed for 25 years to the International Herald Tribune and other international publications. He is especially known for his work for the holocaust memorial project Stolpersteine and for his “reality check” - since 2012 he has been wearing a kippah in public.
Document 8: Thomas Sutherland (academic): Thomas Sutherland (May 3, 1931 – July 22, 2016), Dean of Agriculture at the American University of Beirut in Lebanon, was kidnapped by Islamic Jihad members near his Beirut home on June 9, 1985. He was released on November 18, 1991 at the same time as Terry Waite, having been held hostage for 2353 days.
Document 9: Stephen Terry: Stephen Terry is a professional chef from Wales, who was taught by Marco Pierre White in his kitchen "Harvey's" and currently owns, and is Head Chef at, the Hardwick Restaurant in Abergavenny, Wales. The Hardwick was awarded a Michelin Bib Gourmand rating in 2011, which was lost in the same year.
Document 10: Terry Christian: Terence "Terry" Christian (born 8 May 1960) is an English broadcaster, journalist and author. He has presented television series including Channel 4's late night Youth Entertainment show "The Word" and ITV1 moral issues talk show "It's My Life". He also presented two series of "Turn On Terry" with regular guest Tony Wilson and numerous other programmes for ITV, MTV, VH1, Channel 4 as well as a variety of different local and national radio programmes on stations including Radio 4, BBC6 Music, Talksport, Century Radio, Key 103, Signal and BBC's Radio Derby and Manchester.
Document 11: Conservative Party (UK) leadership election, 1997: The 1997 Conservative Party leadership election was triggered in the British Conservative Party when John Major resigned on 2 May 1997, following his party's defeat at the 1997 general election, which ended 18 years of Conservative Government of the United Kingdom. Major had been Conservative leader and Prime Minister since November 1990.
Document 12: 1987 in the United Kingdom: Events from the year 1987 in the United Kingdom. At the beginning of the year, the Archbishop of Canterbury's envoy Terry Waite was kidnapped in Lebanon and remained a hostage until 1991. The major political event of this year was the re-election of Margaret Thatcher in June, making her the longest continuously serving Prime Minister since Lord Liverpool in the early 19th century. The year was also marked by a number of disasters — the sinking of the ferry MS "Herald of Free Enterprise", the Hungerford massacre, the "Great Storm", the Remembrance Day Bombing and the King's Cross fire.
Document 13: John Senior: Major (Ret) John Wilson Senior, MBE, TD, mobilised on 27 December 2001, Senior was the first member of the British Territorial Army to be deployed on operational service to Afghanistan (post 11 September 2001). He is also the founder of Heroes Welcome UK, a national scheme to encourage local communities to show their open support to British and other UK-based military personnel.
Document 14: Terry Waite: Terence Hardy "Terry" Waite {'1': ", '2': ", '3': ", '4': "} (born 31 May 1939) is an English humanitarian and author.
Document 15: List of Prime Ministers of the United Kingdom: The Prime Minister of the United Kingdom is the head of the Government of the United Kingdom, and chairs Cabinet meetings. There is no specific date when the office of Prime Minister first appeared, as the role was not created but rather evolved over a period of time. The term was used in the House of Commons in 1805 and it was certainly in parliamentary use by the 1880s, and in 1905 the post of Prime Minister was officially given recognition in the order of precedence. Modern historians generally consider Sir Robert Walpole, who led the government of Great Britain from 1721 to 1742, as the first Prime Minister. Walpole is also the longest-serving Prime Minister by this definition. However, Sir Henry Campbell-Bannerman was the first Prime Minister and Margaret Thatcher the longest-serving Prime Minister to have been officially referred to as such.
ground_truth: the re-election of Margaret Thatcher