 Complete the following phrase:  When Philips son Alexander invaded the Persian Achaemenid Empire in 334 BC, Memnon, aware of the political issues the Macedonians dealt with, urged king Darius III 336330 BC to orchestrate a rebellion in Greece and he advised the Persian satraps to lay waste to the land that Alexander would have to pass, depriving his army of food and supplies. This would make it harder for Alexander and his army to survive on their long journey before the battle. The satraps did not trust Memnon because of his nationality, and did not ravage their territories. Initially hesitant, Darius made Memnon the commander of the western satrapies provinces after the defeat at the Battle of Granicus. During the 