17). Yemen Kadhi Abdullah al-Hagri Edward Heath June 17, 1974 Mohammed Abdullah al-Eryani Hassan Muhammad Makki Harold Wilson January 1, 1977 October 16, 1982 Ahmed Deifellah Al-Azeib Abd Al-Karim Al-Iryani Margaret Thatcher January 1, 1987 May 22, 1990 Yemeni unification, the Yemen Arab Republic was united with South Yemen Abdul Aziz Abdul Ghani John Major January 1, 1994 Abdullah Mohamed Ali Al-Montser Chargé d'affaires[3] Haidar Abu Bakr al-Attas John Major February 28, 1995 Hussein Abdullah al-Amri Abdul Aziz Abdul Ghani John Major January 1, 2000 October 31, 2001 Mutahar Abdullah Al-Saeede Mutahar Abdullah Alsaeedi Abdul Qadir Bajamal Tony Blair January 1, 2003 September 30, 2005 Mohamed Taha Mustafa Abdul Qadir Bajamal Tony Blair October 13, 2015 Yassin Saaed Noman Ahmed Khaled Bahah David Cameron