Afghanistan's 'graveyard of foreigners'

Few countries in the world have been invaded as often, and by so many other nations, as Afghanistan, where many soldiers and civilians of various nationalities are buried in Kabul's Kabre Gora, or "graveyard of foreigners".

There is an odd kink in Martyrs Road in the Sherpur district of Kabul. It forces the traffic - from cyclists to rattling yellow taxis - to slow down suddenly, in what looks almost like a mark of respect.