This comprehensive study is the first scholarly account explaining how the British and Indian armies adapted to the peculiar demands of fighting an irregular tribal opponent in the mountainous no-man's-land between India and Afghanistan. It does so by discussing how a tactical doctrine of frontier fighting was developed and 'passed on' to succeeding generations of soldiers. As this book conclusively demonstrates this form of colonial warfare always exerted a powerful influence on the organisation, equipment, training and ethos of the Army in India.