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| government_type = Unitary[{{cite web |title=Decentralization in Unitary States |url=https://css.ethz.ch/content/dam/ethz/special-interest/gess/cis/center-for-securities-studies/resources/docs/Carnegie-Middle-East-Center_Hasan_Khaddour_Iraq-Syria_Border.pdf |website=constitutionnet.org |format=PDF |date=March 2020 |quote=Yemen’s 1991 Constitution, enacted as part of an agreement unifying North Yemen and South Yemen, established a unitary republic that was highly centralized. }}][{{cite web |title=The Challenge of Federalism in Yemen |url=https://www.files.ethz.ch/isn/180490/The_Challenge_of_Federalism_in_Yemen.pdf |publisher=[[Atlantic Council]] |author=Rafat Al-Akhali |format=PDF |date=May 2014 |quote=Since the 1962 revolution in North Yemen and the independence of 1967 in South Yemen, both states moved into a more centralized form of governance. In 1990, the two states united and became known as the Republic of Yemen. }}] [[Islamic state|Islamic]][{{cite book|title=State Succession and Membership in International Organizations|url=https://books.google.com/books?id=Ty7NAG1Jl-8C&q=%22Yemen+Arab+Republic%22+%22islamic+state%22&pg=PA115|isbn = 9041115536|access-date=13 February 2018|last1 = Bühler|first1 = Konrad G.|date = 8 February 2001| publisher=Martinus Nijhoff Publishers}}] [[parliamentary republic]][{{cite web|title=Constitution of the Yemen Arab Republic, 1970|url=http://al-bab.com/constitution-yemen-arab-republic-1970|website=al-bab.com|access-date=8 February 2018}}] |
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| government_type = Unitary[{{cite web |title=Decentralization in Unitary States |url=https://css.ethz.ch/content/dam/ethz/special-interest/gess/cis/center-for-securities-studies/resources/docs/Carnegie-Middle-East-Center_Hasan_Khaddour_Iraq-Syria_Border.pdf |website=constitutionnet.org |format=PDF |date=March 2020 |quote=Yemen’s 1991 Constitution, enacted as part of an agreement unifying North Yemen and South Yemen, established a unitary republic that was highly centralized. }}][{{cite web |title=The Challenge of Federalism in Yemen |url=https://www.files.ethz.ch/isn/180490/The_Challenge_of_Federalism_in_Yemen.pdf |publisher=[[Atlantic Council]] |author=Rafat Al-Akhali |format=PDF |date=May 2014 |quote=Since the 1962 revolution in North Yemen and the independence of 1967 in South Yemen, both states moved into a more centralized form of governance. In 1990, the two states united and became known as the Republic of Yemen. }}] [[Islamic state|Islamic]][{{cite book|title=State Succession and Membership in International Organizations|url=https://books.google.com/books?id=Ty7NAG1Jl-8C&q=%22Yemen+Arab+Republic%22+%22islamic+state%22&pg=PA115|isbn = 9041115536|access-date=13 February 2018|last1 = Bühler|first1 = Konrad G.|date = 8 February 2001| publisher=Martinus Nijhoff Publishers}}] [[parliamentary republic]][{{cite web|title=Constitution of the Yemen Arab Republic, 1970|url=http://al-bab.com/constitution-yemen-arab-republic-1970|website=al-bab.com|access-date=8 February 2018}}] |
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* under a [[Nasserism|Nasserist]] provisional [[military junta]] (1962–1967, 1974–1978) |
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* under a [[Nasserism|Nasserist]] provisional [[military junta]] (1962–1967, 1974–1978) |
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* under a [[One-party state|one-party]]{{efn|In 1982, the [[General People's Congress (Yemen)|General People’s Congress]] was established as the sole legal party of the Saleh regime.}} authoritarian [[dictatorship]] (1978–1990) |
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* under a [[One-party state|one-party]]{{efn|In 1982, the [[General People's Congress (Yemen)|General People’s Congress]] was established as the sole legal party of the Saleh regime.}} totalitarian [[dictatorship]] (1978–1990) |