>Both begin with the uniting of a peninsula and the destruction of a more peaceful neighbor.(Carthage, Byzantium)
>Both war-like cultures that stole their high culture from their eastern neighbors (Greece, Persia)
>Both civilized northern barbarians through repressive genocide and slavery (Gauls, Slavs)

The only difference is that the Ottomans ultimately failed to subdue the Barbarians, instituting a Pax Ottomania in Europe.