[quote=@GreivousKhan]

I'd have used the Roman Empire as example as well, but they tended to burn down settlements pillage the hell out of their enemies who defied them. >.> 


Actually maybe the Steel Brotherhood would be a nice fit for a comparison. 
[/quote]

From what I gathered the Brotherhood of Steel is isolationist, traditionalist and strongly linked with hoarding weapons for the wastelander's 'own good', so I wouldn't say they're all that similar. The Roman Empire might be a better comparison though, as the Angar Rylla are all about assimilation and acquiring important resources (even if they're sentient) in order to establish control over what they would probably consider Barbarians.