The war in Afghanistan was a war that initially confronted the Islamic Emirate of Afghanistan, ruled by the Taliban, and, once it was overthrown, its insurgency.
So they (the slaves) were treated bad because they weren't considered human beings
The correct answer is He married a Persian woman and encouraged his soldiers to marry Persian women as well.
Alexander's legacy includes the cultural diffusion of his achievements and the rise of Hellenistic culture as a result of his military campaigns.
Alexander's impressive record was largely due to his clever use of terrain, phalanx and cavalry tactics, bold and adaptable strategy, and the fierce loyalty of his troops.