What did Alexander the great do with the people he conquered?

Answer 1

I believe he did the same as the Roman conquerors--the conquered people were assimilated into their society. Shortly, Persian people were marrying Greeks, etc. Alexander's armies left trusted politicians and army leaders, army units, and of course the families of the soldiers who trailed along with them to the place recently conquered. While I am sure many people were killed, maimed, and/or injured by the Persian armies, the surviving people tried to learn the Persian language and societal rules, if they wanted to get anywhere in Persian courts and high circles.

Answer 2

He informed them that they are free to live as they used to, choosing their own rulers, but recognising him as the successor of the throne. He did not want to be seen as the one who destroyed an empire, but the one who unified the then-known world.

He envisioned a unified society where all nations can live equally and peacefully. This is why he ordered 10000 mixed marriages to take place at the Persian capital, between Greek soldiers and Persian women.

In Persian tradition, Alexander is still viewed as one of the greatest kings of the Persian throne.

Answer 3

He took it over and killed everybody to make them better people