The idea that the United States government should not intervene in the internal affairs of other nations is heresy. After World War II, both political parties and nearly all the nation’s elites agreed on one thing: we have an “obligation” to pursue and maintain a...

I often hear a variant of the following from conservatives (and some liberals) when confronted with the foreign policy views of libertarians: “Sure, I’m all for a more peaceful foreign policy, but you guys take it too far – isolationism won’t...