Wars of the Diadochi
In June 323 BCE, Alexander died suddenly, leaving a power vacuum in Macedon, putting all he had worked for at risk. Being that his half-brother Arrhidaeus was unable to rule effectively due to a serious disability, a succession of wars over the rights to his conquests were fought known as the Wars of the Diadochi. Perdiccas, a high-ranking officer of the cavalry, and later Antigonus, the Phrygian satrap, prevailed over the other contenders of Alexander's empire in Asia for a time.