Alexander the Great : The largest empires.
In 334 BC Alexander III of Macedon better known as Alexander the Great set out on his grand campaign of conquest against the Persian Achaemenid Empire, aged just 22. Benefitting from the conquests, diplomacy and military reforms of his father, Philip II, Alexander has inherited a powerful professional army that utilized the Phalanx formation.
He would go on to forge one of the largest empires the world had yet seen, conquering the mighty Persian Empire and marching his army as far as the Beas River in India. Alexander won four victories against the Persians: the Battle of the Granicus: May 334 BC, The Battle of Issus: 5 November 333 BC, The Battle of Gaugamela: 1 October 331 BC, The Battle of the Persian Gate: 20 January 330 BC. His ability to dream, plan and strategize on a large scale allowed him too many battles, even when he was outnumbered.
