Explain a strategy used by territorial empires in Eurasia to supervise vast imperial provinces between 1200 and 1450 CE

There was a lot of vast empires in eurasia one of them is persian empire.

Explanation:

2686-2181 bce-- "egyptian civilization developed along the nile river in large part because the river’s annual flooding ensured reliable, rich soil for growing crops."

1069-664 bce-- "ancient egyptians developed wide-reaching trade networks along the nile, in the red sea, and in the near east."