Early Islam institutionalized a permanent war-theater outside its own territory

Evidence

Muslims were encouraged to use political and military means for the expansion of Islam: outside the dâr al-Islam was the dâr al-Harb, the theater of war, open for the expansion of Islam. Muslim tradition affirms that Muhammad sent letters to the king of Ethiopia, the Roman governor or Egypt, and the Roman and Persian emperors, inviting them to convert to Islam. — John V. Tolan, Saracens, 234

Categorization

• DEFINE: Defines the dar al-Islam / dar al-Harb binary that underlay centuries of Islamic political thought.
• XREF: connects to: Afghan war transformed scattered urban militants into an organized movement — Deepa Kumar, Islamophobia and the Politics of…, 397