"The MLDC [Military Leadership Diversity Commission] has been tasked with assessing promotion opportunities by race, ethnicity, and gender. To that end, this issue paper presents recent raw promotion rates to the grades of E-7, E-8, and E-9 for female and minority personnel in the Navy, the Air Force, the Army, and the Marine Corps. Comparing minority rates with average rates for each Service and each pay grade, the data show the following instances of minority groups having substantially below-average rates: black marines at all grades, female marines at promotion to E-9, and 'other' airman at promotion to E-9. Because the promotion data presented here do not control for factors other than race/ethnicity or gender, these large differences call for further investigation rather than an immediate policy response."
Military Leadership Diversity Commission Issue Paper No. 47
Department of Defense Office of Diversity Management and Equal Opportunity: http://diversity.defense.gov/