Leon Hadar has a piece over at The American Conservative where he posits that libertarians can't do foreign policy because of their convictions. What that really amounts to is that libertarians only will engage in wars of defense on American soil or the high seas. They would not roam the world looking for monsters to destroy. Republicans have the same problem though. Call it cognitive dissonance or call it hypocrisy the outcome is the same. You can't call for the the government to leave you alone at home and then send the government's soldiers, sailors, Marines, and airmen all over the world to rebuild nations and reformulate their cultures more to our liking. That in a nutshell is what the neo-conservative, Christian zionist wing of the GOP do on a regular basis.