Answer:
Giving the Union control of the Mississippi River
Explanation:
The Union wanted control of the Mississippi to cut off trade and transport for the South. The river being taken also made things harder for the Confederates (because it cut their side in half, so the Union had the upper hand).
Could you be referring to the holocaust? In that case it would have been the Jewish people.
Answer: he divided it into provinces and assigned satraps to govern them
he created an alliance with the city-states of Greece
he used military technology Persia learned from the Hyksos
he destroyed temples and made the religions of conquered people illegal
Explanation: He had to mainatin control over his empire by doing such actions
England or america i think