In The Battle of Hydaspes: Alexander the Great and the Invasion of India, Jack Whitaker tells the dramatic true story of the easternmost great battle of Alexander the Great's career, a clash fought on the rain-soaked plains of the Punjab that pushed the Macedonian army to its limits. In 326 BCE, after years of conquest stretching from Greece to the heart of the Persian Empire, Alexander faced King Porus on the banks of the Hydaspes River. Separated by monsoon-swollen waters and confronted by an army supported by war elephants, he devised one of the most daring river crossings in military history to bring his forces into battle.

Drawing on ancient accounts, archaeological evidence, and modern scholarship, Whitaker reconstructs the campaign in vivid detail, from the tense standoff along the riverbanks to the desperate struggle between Macedonian phalanxes and charging elephants. He brings to life the commanders, soldiers, and rulers who fought in a contest that combined bold strategy, personal courage, and brutal close combat under the shadow of the monsoon.

More than a story of battlefield tactics, this book reveals how Hydaspes marked both the high point of Alexander's conquests and the beginning of their limits. It was a hard-won victory that opened the gates of India but also exposed the exhaustion of an army that had marched to the edge of the known world, setting the stage for the end of Alexander's eastward advance.