I'll give you a hint:
The naivete of Obama was on full display this morning again when he gave a CYA statement from the White House on Iraq. Essentially, in response to critics who say (correctly) that the turmoil over there would never have happened if he had successfully negotiated a Status of Forces Agreement and kept a small but useful deterrent of United States Armed Forces personnel in that country, Obama offered a platitude that (I'm paraphrasing) "if the different tribes and ethnicities and religions can't accommodate each other, then no amount of U.S. force can do any good."
Well. Let's boil that down... what Obama is saying is that, until history stops and utopia commences, prudential use of force to maintain order is useless. Using that same logic, why should we have a military at all? Why should we have police officers? Or borders? Or laws? Since human nature is what it is, and no amount of force can change it, why not just relax and watch Sports Center and make a tee time for later this afternoon?