Battle of Adrianople 378 AD

Whilst I was considering whether to buy Rome Total War 2 for the PC, I came across this 4 part set of wonderfully made videos showing the problems of the late Roman Empire that led to the its defeat of the battle of Adrianople using the Rome Total War 2 engine.  As a background the Romans were defeated by a barbarian army of refugees/migrants who then had the right to settle within the empire.