The Southern Transitional Council, an autonomous and secessionist body whose 26 members, calls for the separation of southern Yemen, during the term of which former president, Yemeni politician?
Ali Abdullah Saleh
Southern Transitional Council
The Southern Transitional Council (Almajlis Alaintiqali Aljanubi; Arabic: المجلس الانتقالي الجنوبي‎ ‎  ) an autonomous and secessionist body whose 26 members include the governors of five southern governorates and two government ministers and is formed by the Southern Movement, also known as al-Hirak al-Janoubi, calls for the separation of southern Yemen.
 The movement has not stopped its activities toward this goal since its establishment in 2007, during the term of former president Ali Abdullah Saleh.
Ali Abdullah Saleh
Ali Abdullah Saleh (Arabic: علي عبد الله صالح‎ ‎ , "ʿAlī ʿAbdullāh Ṣāliḥ"; born 21 March 1942) is a Yemeni politician who rose to power following the assassination of President al-Ghashmi.
 He was elected President of North Yemen (the Yemen Arab Republic) on 17 July 1978 at the age of 36.
 Following the merger of North Yemen with South Yemen on 22 May 1990, President Saleh was sworn in as the new President.
 Long considered a moderate President, he oversaw his country's development of deeper ties with Western powers, especially the United-States, in its fight against terrorism.
 In 2011, in wake of the "Arab Spring" that spread across Yemen, Saleh's time in office became more and more untenable, until eventually he was ousted as President of Yemen in 2012.
 He was succeeded in office by Abd Rabbuh Mansur Hadi.
Jarallah Omar
Jarallah Omar al-Kuhali (Arabic: جار الله عمر‎ ‎ ) (1942 in Kuhal, Ibb Governorate – 28 December 2002) was a Yemeni politician, intellectual, and guerrilla fighter.
 He was trained in Islamic law, but in the 1960s he turned towards Marxism.
 He was a political prisoner from 1968 to 1971 and participated in the civil war between North Yemen and South Yemen as a leader of the National Liberation Front, a politico-military coalition affiliated to the socialist government of the South.
 He escaped to the South after his forces were defeated by then-North Yemeni President and current unified Yemeni President Ali Abdullah Saleh.
 Jarallah became a member of the Politburo of the Yemeni Socialist Party (YSP), the ruling party in the South, and was named minister of culture in the government of a newly unified Yemen in the early 1990s.
 He resigned his cabinet post and went into exile shortly before a failed attempt by former southern politicians to re-establish a "Democratic Republic of Yemen" in 1994.
 The president of the ephemeral secessionist regime, Ali Salim al-Baidh, was a former ally of Jarallah in the factional disputes within the YSP in 1986.
 When Jarallah returned to the country in 1995, he developed a reputation as a leading advocate of human rights and political freedoms in the authoritarian political climate of Yemen. Khaled Bahah
Khaled Mahfoudh Bahah (ِArabic: خالد محفوظ بحاح‎ ‎ ) is a Yemeni politician and diplomat who served as Prime Minister of Yemen between 2014 and 2016, as well as Vice President of Yemen from 2015 until he was sacked on April 3, 2016 by President of Yemen Abdrabbuh Mansur Hadi. Ali Nasir Muhammad
Ali Nasir Muhammad Husani (Arabic: علي ناصر محمد الحسني‎ ‎ ) (born 31 December 1939) was the leader of South Yemen as General Secretary of the Yemeni Socialist Party between 1980 and 1986.
 He also was twice president of South Yemen and once the Prime Minister.
 He served as the Prime Minister from 2 August 1971 until 14 February 1985 and as Chairman of the Presidential Council from 26 June 1978 - 27 December 1978.
 In April 1980, South Yemeni president Abdul Fattah Ismail resigned and moved to Moscow.
 His successor was Ali Nasir Muhammad who took a less interventionist stance toward both North Yemen and neighbouring Oman.
 On January 13, 1986, a violent struggle began in Aden between Ali Nasir's supporters and supporters of the returned Ismail.
 (See South Yemen Civil War) Fighting lasted for more than a month and resulted in thousands of casualties, Ali Nasir's ouster, and Ismail's death.
 Muhammad's term had lasted from 21 April 1980 to 24 January 1986.
 Some 60,000 people, including the deposed Ali Nasir, fled to North Yemen.
 He was succeeded by Haidar Abu Bakr al-Attas. National Liberation Front (South Yemen)
The National Liberation Front (Arab: الجبهة القوميّة) or NLF was a Marxist paramilitary organization and a political party operating in the Federation of South Arabia, (now southern Yemen) during the Aden Emergency.
 During the North Yemen Civil War, fighting spilled over into South Yemen as the British attempted to establish an autonomous colony known as the Federation of South Arabia.
 Following the exit of the British armed forces, the NLF seized power from its rival, the Arab nationalist Front for the Liberation of Occupied South Yemen (FLOSY).
 In the aftermath of the Emergency, the NLF reorganized itself into the Yemeni Socialist Party and established a single-party Marxist-Leninist regime, known as the People's Democratic Republic of Yemen. South Yemen insurgency
The South Yemen insurgency is a term used by the Yemeni government to describe the protests and attacks on government forces in southern Yemen, ongoing since 27 April 2009, on South Yemen's independence day.
 Although the violence has been blamed on elements within the southern secessionist movement, leaders of the group maintain that their aims of independence are to be achieved through peaceful means, and claim that attacks are from ordinary citizens in response to the government's provocative actions.
 The insurgency comes amid the Shia insurgency in the country's north as led by the Houthi communities.
 Southern leaders led a brief, unsuccessful secession in 1994 following unification.
 Many of them are involved in the present secession movement.
 Southern separatist insurgents are active mainly in the area of former South Yemen, but also in Ad Dali' Governorate, which was not a part of the independent southern state. United Nations Security Council Resolution 243
United Nations Security Council Resolution 243, adopted unanimously on 12 December 1967, after examining the application of the People's Republic of Southern Yemen for membership in the United Nations, the Council recommended to the General Assembly that the People's Republic of Southern Yemen be admitted. Ali Salem al Beidh
Ali Salem al Beidh (‘Alī Sālim al-Bīḍ, Arabic: علي سالم البيض‎ ‎ ) (born 10 February 1939) is a Yemeni politician who served as the General Secretary of the Yemeni Socialist Party (YSP) in South Yemen and as Vice President of Yemen following the unification in 1990. Abdel-Aziz bin Habtour
Abdel-Aziz bin Habtour (born 8 August 1955) is a Yemeni politician who served as Governor of Aden during the Houthi takeover in Yemen.
 He is a member of the General People's Congress, sitting on its permanent committee since 1995.
 An ally of President Abdrabbuh Mansur Hadi, he condemned the 2014–15 Yemeni coup d'état and received the deposed leader after his flight from the Houthi-controlled capital of Sana'a on 21 February 2015.
 He is also a vocal opponent of the separatist movement in the former South Yemen, saying the movement is too fractured and small to achieve its goals.