Rashidun Caliphate 2024
Iran and Hamas terrorism: The complex interplay of the Middle East quagmire - opinion The Jerusalem Post
The Rashidun Caliphate: The First Islamic State The Collector
What is a caliph? The Islamic State tries to boost its legitimacy by hijacking a historic institution The Conversation Indonesia
Explainer: What Is The Islamic Caliphate? Radio Free Europe / Radio Liberty