TIMELINE: The human cost of war in Afghanistan

Almost 15 years since the Taliban government were ousted in a U.S.-led military campaign, Afghanistan remains one of the most dangerous and violent countries in the world. More than 9 million people are in need of humanitarian aid in the country, an increase of 13 percent, according to the United Nations. It said the number of casualties in the first nine of months of 2016 – 8,397 – was the highest recorded, and included a 15 percent increase in child casualties. We chart the human cost of Afghanistan’s conflict since 2001. WARNING: This video contains images some viewers may find distressing.