In an internet discussion with a friend the issue of military IQ came up and I thought readers/posters on this site might be able to help. Here are my questions; does anyone know estimates on what is the mean IQ of the military? What is the estimate on the lowest IQ score one could have and still serve?

The info would be much appreciated.

Update from Razib: Steve Sailer has written about this topic. Relevant quote:

...A surprisingly high fraction of young Americans are ineligible to join the Army because of lack of intelligence – extrapolating from Moskos and Sibley’s figures, about a fifth of all whites and three-fifths of all blacks wouldn’t make the cut....

"83 percent of white recruits scored in the upper half of the mental aptitude test (compared with 61 percent of white youths in the national population), while 59 percent of black recruits scored in the upper half (compared with 14 percent of the black youths nationwide)."

About an IQ of 90 is the minimum if my conversion of the 20th percentile is correct for whites.

Update from Arcane: This topic has been discussed before on this blog, although I'm not sure how much help it will be to you. Click here.