What was Xerxes foreign policy?

Answer 1

"Xerxes foreign policy was to allow for any other religion, but if any country had challenged him in any way he would tell them what to believe in, also if you were not apart of his empire then you would be attacked until they gave submission of earth and water."

Xerxes I had a custom of requesting a tribute of "land and water" as a policy towards nations before seizing them or adding them to the Persian empire. Examples of nations that revolted against him and had their religion removed from their land -as mentioned in the previous answer- were -supposedly- Babylon and Egypt. This method of expanding the Persian empire was an improvement over earlier methods used my the Assyrians that involved generally just beating everyone around them into a bloody submission. Smart administrative decisions by Xerxes I saw the nations willingly become tributaries of the Persian empire and even in some cases wanting to become a part of the Persian empire.

*Italic writing indicates a previous response not removed.