Darius III - Conflict With Alexander

Conflict With Alexander

In the spring of 334 BC, Philip's heir, Alexander, who had himself been confirmed as Hegemon by the League of Corinth, invaded Asia Minor at the head of a combined Macedonian and Greek army. This invasion, which marked the beginning of the Wars of Alexander the Great, was followed almost immediately by the victory of Alexander over the Persians at Battle of the Granicus. Darius never showed up for the battle, because there was no reason for him to suppose that Alexander intended to conquer the whole of Asia, and Darius may well have supposed that the satraps of the ‘lower’ satrapies could deal with the crisis, so he instead decided to remain at home in Persepolis and let his satraps handle it. In the previous invasion of Asia Minor by the Spartan king Agesilaus, the Persians had pinned him in Asia Minor while fomenting rebellion in Greece. Darius attempted to employ the same strategy, but the Spartans were defeated at Megalopolis.

Darius did not actually take the field against Alexander’s army until a year and a half after Granicus, at the Battle of Issus in 333 BC. His forces outnumbered Alexander's soldiers by at least a 2 to 1 ratio, but Darius was still outflanked, defeated, and forced to flee. It is told by Arrian that at the Battle of Issus the moment the Persian left went to pieces under Alexander’s attack and Darius, in his war-chariot, saw that it was cut off, he incontinently fled – indeed, he led the race for safety. On the way, he left behind his chariot, his bow, and his royal mantle, all of which were later picked up by Alexander. Greek sources such as Diodorus Siculus' Library of History and Justin's Epitoma Historiarum Philippicarum recount that Darius fled out of fear at the Battle of Issus and again two years later at the Battle of Gaugamela despite commanding a larger force in a defensive position each time. At the Battle of Issus, Darius III even caught Alexander by surprise and failed to defeat the Macedonian(Alexander's) forces. Darius fled so far so fast, that Alexander was able to capture Darius’s headquarters, and take Darius’s family as prisoners in the process. Darius petitioned to Alexander through letters several times to get his family back, but Alexander refused to do so unless Darius would acknowledge him as the new emperor of Persia.

Circumstances were more in Darius’s favor at the Battle of Gaugamela in 331 BC. He had a good number of troops who had been organized on the battlefield properly, he had the support of the armies of several of his satraps, and the ground on the battlefield was almost perfectly even, so as not to impede movement. Despite all these beneficial factors, he still fled the battle before any victor had been decided and deserted his experienced commanders as well as one of the largest armies ever assembled. Another source accounts that when Darius perceived the fierce attack of Alexander, as at Issus he turned his chariot around, and was the first to flee, once again abandoning all of his soldiers and his property to be taken by Alexander. Many Persian soldiers lost their lives that day, so many in fact that after the battle the casualties of the enemy ensured that Darius would never again raise an imperial army. Darius then fled to Ecbatana and attempted to raise a third army, while Alexander took possession of Babylon, Susa, and the Persian capital at Persepolis. Darius reportedly offered all of his empire west of the Euphrates River to Alexander in exchange for peace several times, each time denied by Alexander against the advice of his senior commanders. Alexander could have declared victory after the capture of Persepolis, but he instead decided to pursue Darius.