Nobody has a military as well-armed and trained as the United States. Nobody can match the United States' overwhelming superiority in nuclear weapons.
Nobody has troops massed on our border, threatening our safety.
The answer, Dasbach said, is that the money isn't intended for the direct defense of the United States. A Libertarian foreign policy understands that America must be a fully engaged participant in the world economy, but refuses to become the world's policeman or interfere in the internal affairs of other nations.