Pizarro took one year to conquer the Incan Empire.
It took him ten years to conquer the Persian Empire and turn it into an empire of his own.
Ten years.
three months
Ten years
From 334 to 327 BCE.
All of them, so he could take over all of the Persian Empire.
He followed his assassinated father Philip's plan to take over the Persian Empire.
He wanted to use the Greeks to augment his military power to take over the Persian Empire.
Macedonia, which his father Philip expanded to take over the Greek city-states and planned to conquer the Persian Empire.
It took 10 years .
They had been a subsidiary of the Medes until Cyrus took them over and used the merged power to move on to take over the Babylonian Empire and beyond.