Starting from Amphipolis, he travelled east into the region of the "Independent Thracians" and at Mount Haemus, the Macedonian army attacked and defeated the Thracian forces manning the heights. The Balochistan Plateau lies in the west and the Thar Desert in the east. Pakistan is divided into a few major geographic regions: the northern highlands, the Indus River plain, and the Balochistan Plateau.