U.S. Army Captain Learning New Skills In War-Torn Afghanistan

Part of the problem with the wars in Iraq and Afghanistan is that our military has been asked to do tasks it does not train for. How can we expect 19 year old kids from the American heartland to be not only soldiers, but politicians, diplomats, urban planners, contruction managers, and more? It seems unfair for us to heap such high expectations on the backs of these kids and the officers who lead them. So, is the public's response to Iraq/Afgahnistan a failure of U.S. policy and foresight or the result of way to high expectations for American power/capabilities?