In the context of 370 -480AD assess the view that conflict with tribes was the major reason for the fall of the Roman Empire

Please see the two file attachments (screen shots) which set out the requirements for the paper..The second attachment includes information about bibliography and source requirements. The first attachment is the teachers view on some issues likely to be mentioned in the essay as well as the teachers experience that those essays which argue economic reasons are the main reason for the fall of the Roman empire are likely to be marked higher.