“Foreign Intervention” The words themselves are guidance for Libertarians. Intervention speaks of using force to make something happen, and not in a helpful or self-defense-like way. This is a no-no by the definition of the NAP. Offering to mow the elderly widow’s lawn isn’t an intervention. Calling the police on your neighbor’s birthday party for noise would be. Intervention means aggression. That we would aggress on people that are foreign is even further from a Libertarian’s thoughts… pun intended.