Expansion?

[Slaists]

the eastern roman empire, with it's peaks, recessions, recoveries and the ultimate collapse would be interesting too (fighting persians, barbarians, bulgarians, internal factions, later - arabs, turks). in MTW we see Byzantium in its decline already, but it had a very long violent stretch of history preceding that. on another note, arab expansion across half of the world (including taking the christian mid-eastern lands from the byzantines) could be a topic of its own...