'In a Nutshell', the new 1-CD audiobook series from Naxos AudioBooks, continues with a fascinating history of Afghanistan. For centuries it has been the playground of big powers, from Alexander the Great to the British Empire and the Soviet Union. It has been torn by internal strife and ideological differences, yet Afghans, tribal though they may be, remain a proud nation. Here is a short history, setting the background to the current situation.