Battle of Hydaspes - Background
Alexander inherited the throne of the small kingdom of Macedonia, which the Greeks viewed as Barbaric, at the age of 20 after his father Phillip II was assassinated in 336 BCE. Phillip had been ambitious but he was clearly even more so for his son. Before he breathed his last, he is believed to have said to Alexander "Carve for yourself another kingdom, because the one I leave for you is too small". Alexander took his father's words to heart.
Before the 4th Century, Macedonia was a small kingdom outside of the area dominated by the city-states of Athens, Sparta and Thebes. But even these city-states couldn't match the heights of the Achaemenid Persian Empire. Stretching from the Balkans and Eastern Europe in the west to the Indus Valley in the east, it was larger than any previous empire in history.
But the young and ambitious Alexander wasn't daunted and he led an army against the Persian ruler Darius III and decisively defeated him in 331 BCE. Next he turned towards the Eastern Provinces of the Persian Empire. After establishing a series of outposts in Afghanistan, he ventured further into the sub continent.... his eyes were leading him towards India.
https://www.livehistoryindia.com/story/history-of-india-2000-years/when-alexander-reached-the-indus-326-323-bce/
















