"Events on world battlefields over the past two years should give the U.S. Army pause to reconsider the entire Foreign Internal Defense (FID) mission. The seemingly unarguable axiom that 'good training makes good soldiers' has been proven to be not always true. Good training does not always make good soldiers. If the definition of a good soldier is 'a member of the armed forces who stands and fights for his or her country,' then a good deal of money has been spent in Afghanistan, Iraq, and elsewhere without measurable and sustainable success. More than a third of all Afghan defense forces trained with U.S. taxpayer money desert in Afghanistan each year, and in Iraq they simply disappear."
Strategic Studies Institute: http://www.strategicstudiesinstitute.army.mil/