Us counterinsurgency coin afghanistan 2012 6 10

USN Hospital Corspman Amy Housley, right, gestures during a class for Afghan children given by the US Marines Female Engagement Team (FET) from the 1st battalion 7th Marines Regiment on June 7, 2012. The US-led war in Afghanistan has cost the lives of around 3,000 US and allied troops, seen thousands of Afghans killed and cost hundreds of billions of dollars.