Answer:
diamonds
Explanation:
In Angola, rebel groups financed a long, violent civil war by selling diamonds on the black market. Other countries, especially in Africa, have been plagued by diamond-related conflicts.
To bring the north and south together and get along peacefully
Protect is the meaning of security
Into many kingdoms
After the fall of Roman empire, Germanic people spread all over europe and established small kingdom that ruled over the fragment of what used to be Roman's territory.
They defined the rules that they imposed to these territories as the 'barbarian law'