The idea that the US and NATO have a moral obligation falls flat when considering that this would put the US and NATO in a position of having a moral obligation to many other third world countries that are struggling and in conflict. Yet, such a broader obligation obviously does not exist, so why should it exist in Afghanistan? The US/NATO cannot solve Afghanistan's problems, and may actually be doing more harm than good. In so far as a state cannot have a moral obligation to do something impossible, the US and NATO should not have a moral obligation to fulfil the impossible task of stabilizing Afghanistan.