The Treaty of Aden was a settlement in the Rashidun city of Aden to establish the new status of Oman and its territories after Oman was crushed in the unification war of the Arabian peninsula. 

Terms of the Treaty

  • Arabia union

    New borders of Arabia

    The region of Arabia from the Persian gulf coast to the Nejd valley is annexed by the Caliphate
  • The peninsula of Qatar, the Island of Bahrain, and the tip of the Ormzud peninsula is annexed by Iran
  • The remainder of Oman is established as a vassal of the Caliphate
  • Oman retains all of its own colonies, vassals, personal unions, and protectorates, and is free to expand them more, but they are all subject to the Caliphate by proxy
  • The remaining unclaimed territory of the Empty Quarter is calimed equally between Oman and the Caliphate (indicated by the white line)

*The Ibadi religion is folded into the existing religion of Islam established by the Grand Council of Basra


  • Rashidun Caliphate: Caliph Umar Bahar Al-Nasser Nur-Raman Al-Ruqqaya, Commander of the Faithful, Protector of the Two Holy Mosques, Speaker of the People, Successor of the Prophet, Emperor of Africa, the Holy Sultan of Sultans
  • Shahdom of Iran: Shahanshah Farzad Souroushpour
  • Oman (Masqat): Sultan Khalid Yoruba (Rashidun vassal)
    • Nabhani Oman refused to sign

The Shah's proposal

Shahanshah Farzad Souroushpour suggests removing the last term of the treaty, as the inclusion of the Ibadi into our grand faith is of little importance, seeing as many of their principals go against the Caliphate and Jihad in general. The Shah suggests if the Rashidun wish to be tough on Oman, they replace the final term with a new term, such as a surrender of the colonies.

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