He has a point in general that the US would probably be more reluctant to fight wars if the average person had to actually fight them.
I'd imagine that if done a right a draft could actually be a good thing. It would certainly make parts of the population that currently don't serve to serve. Maybe this would educate more dovish parts of the population on foreign policy or at least give them a more personal stake and insight. Though I imagine it could simply be skewed because the very poor don't have a basic education and the most educated probably have more opportunities and it might be very competitive to join as a career officer. It would also be interesting to see the proportion of people who are "too sick to fight" are spread out amongst the population.
