A fully illustrated study exploring the armies of what are now India, Pakistan, Bangladesh, Sri Lanka and Nepal during the period AD 500–1500, as well as Afghanistan until the early 13th century AD.

Following the emergence of a distinct 'medieval Indian' civilization in the Late Classical and Early Medieval periods, there was a prolonged struggle between this civilization and that of the eastern Islamic world, concluding with the rise of the Mughal Empire at the start of the 16th century.

Alongside illustrations, David Nicolle investigates the traditions and enduring conservatism of non-Islamic medieval Indian warfare, notably evident in recruitment patterns and the significance of archery and cavalry. The role and impact of war-elephants, the influence of climate and weather on warfare in this region are explored, as well as assessing arms and armour contrasted with the advanced technology and high status of Indian weapons. The author also explores siege warfare and riverine and naval warfare in South Asia.

This book assesses why the huge wealth and substantial populations of the traditional non-Islamic Indian states did not prevent their persistent failure in the face of Islamic invasion and conquest.