Sassanid Empire

Overview
Sassanid Empire is the first Persian country to appear in the game. It's formed around the Res Publica era from Parthian Empire. It's the faction that has the most max province count out of all Persian factions, an impressive number of 51, the exact same as the Byzantine Empire. Sassanid Empire is fully annexed by the Caliphate during the Rise of Islam.

AI
The AI of The Sassanid Empire is very aggressive towards its middle east and Arabic neighbors. Often invading them and attempting to annex them, only to get revolted quickly afterward.