Living on the edge is nothing new to Afghanistan. The country and its people are familiar with extremes of most kinds – geographic, political, religious. But today they are well and truly on the brink.

During 2008 the conflict in Afghanistan has escalated dramatically, claiming some 3,000 lives, almost half of them civilians. This is worse than at any time since the US-led invasion seven years ago. The monthly death toll of international servicemen and -women in Afghanistan has topped that of Iraq. The Afghan police force has lost no fewer than 700 personnel this year, while the targeting of aid agencies by militants has led to a doubling of charity workers killed.