I thought about this question and wondered: Are there any known cases where a country switched to a different language other than because of being conquered? If some country ever did this I would be ...
Considering that Sicily has been inhabited by multiple empires/peoples native Sicilians/Italians tribes and communes Greeks (partially) Carthaginians (partially) Romans Ostrogoths (very briefly) ...
The population of the Chinese empire was about 120 times larger than the Jurchen tribe, who later renamed themselves to Manchus. Yes, the Manchus were very skilled warriors and the late Ming dynasty ...
Did the roman conquerors have directives/guidelines to either integrate or assimilate foreign tribes/folks?
It is likely that Romans made no distinction between today's terms integration and assimilation. They did everything that was necessary for the expansion of the Roman empire and worked from experience....