This week you will be asked to choose one of the following two questions, though both may help in your understanding of Treadgold's chapter.
1. How does one explain the Byzantine success under Heraclius against the Persians? And their subsecquent failure against the smaller Arab armies?
2. How did the introduction of the themes (which Treadgold dates to the reign of Constans II) contribute to the survival of the Byzantine state?