Name that Fall of Rome Factor

What type of factor is the invasions of Germanic tribes in contributing to Rome's fall/decline?

What type of factor is overspending (on the military) in contributing to Rome's fall/decline?

What type of factor is the split between Western and Eastern empires in contributing to Rome's fall/decline?

What type of factor is the moral decline in contributing to Rome's fall/decline?

What type of factor is government corruption in contributing to Rome's fall/decline?

What type of factor is the weakening military in contributing to Rome's fall/decline?

What type of factor is civil war in contributing to Rome's fall/decline?

What type of factor is that Rome was ruled by 22 different emperors in about 50 years in contributing to Rome's fall/decline?

What type of factor is that Alaric, chief of the Visigoths, attacked Rome in contributing to Rome's fall/decline?

What type of factor is that inflation in contributing to Rome's fall/decline?