A few misconceptions and twists are made in these arguments - I found this on mostly DOD sites:
The American All Volunteer Military is better educated on average than the population of America. A higher percentage, significantly, of american military have HSD and those that do not are usually bootstrapped in a program for GED. A higher percentage of military from 18-35 have some college compared to the average population of America. Half of all americans from 18-24 do not qualify for military service due to health / education requirements.
Ethnicly, black americans are recruiting somewhat above and hispanic / asian american are recruiting at below their percentage of population. Recruitment of black americans is trending down.
The enlistment recruiting well mirrors the averages for America.
Interesting article:
http://www.defenselink.mil/news/Dec2...13mythfact.pdf