In following the hero of this story through the last Afghan war, you will be improving your acquaintance with a country which is of supreme importance to the British Empire and, at the same time, be able to trace the operations by which Lord Roberts made his great reputation as a general, and a leader of men. Afghanistan stands as a line between the two great empires of England and Russia; and is likely, sooner or later, to become the scene of a tremendous struggle between these nations. Happily, at the present time the Afghans are on our side. It is true that we have warred with, and beaten them; but our retirement, after victory, has at least shown them that we have no desire to take their country while, on the other hand, they know that for those races upon whom Russia has once laid her hand there is no escape.  
In these pages you will see the strength and the weakness of these wild people of the mountains; their strength lying in their personal bravery, their determination to preserve their freedom at all costs, and the nature of their country. Their weakness consists in their want of organization, their tribal jealousies, and their impatience of regular habits and of the restraint necessary to render them good soldiers. But, when led and organized by English officers, there are no better soldiers in the world; as is proved by the splendid services which have been rendered by the frontier force, which is composed almost entirely of Afghan tribesmen.
 
Their history shows that defeat has little moral effect upon them. Crushed one day, they will rise again the next; scattered--it would seem hopelessly--they are ready to reassemble, and renew the conflict, at the first summons of their chiefs. Guided by British advice, led by British officers and, it may be, paid by British gold, Afghanistan is likely to prove an invaluable ally to us, when the day comes that Russia believes herself strong enough to move forward towards the goal of all her hopes and efforts, for the last fifty years--the conquest of India.
 
G. A. Henty.