Listen to the first hour of Rush today. He had some good callers that went to military academies. One from West Point made a great point (ha) that at that time, 68-72 era, the military academies were also deep in affirmative action and were actively looking for young, intelligent black men.
Read the transcript on the free side of the website.
I was in the Army by 1970. The military academies were searching hard for candidates. The war era had reduced their numbers as so many went the way of the culture and became anti-military or non-interested in the military because of the war.