After Rhodesia, Baden-Powell served in the Fourth Ashanti War in Gold Coast. In 1897, at the age of 40, he was brevetted colonel (the youngest colonel in the British Army) and given command of the 5th Dragoon Guards in India. A few years later he wrote a small manual, entitled "Aids to Scouting", a summary of lectures he had given on the subject of military scouting, much of it a written explanation of the lessons he had learned from Burnham, to help train recruits.