A system which encourages the development of the most harmonious relationships among all people. In dealing with political issues, libertarians focus on the people involved. If so, then it's proper to call on government to help the victim against the wrongdoer. But, if not, the government should not get involved. In most instances, people are better off if allowed to work out their own problems through voluntary cooperation without introducing the coercive tool of government.
History shows that free people can be counted on to defend their homes and their country.
But the draft is slavery, and slaves make lousy defenders of freedom. I like knowing I'm being protected by people who are in the military because they want to be there, not because they were forced against their will to be there. A military focused on defending America instead of policing the globe would reduce manpower needs and further eliminate any reason to have a draft or draft registration. Let's let free people defend freedom. America's free press is envied by freedom-starved people everywhere.