President Truman issued an Executive Order directing the military to give...

on July 26, 1948, he issued an executive order abolishing segregation in the armed forces and ordering full integration of all the services. Executive Order 9981 stated that “there shall be equality of treatment and opportunity for all persons in the armed forces without regard to race, color, religion, or national origin.” The order also established an advisory committee to examine the rules, practices, and procedures of the armed services and recommend ways to make desegregation a reality. There was considerable resistance to the executive order from the military, but by the end of the Korean conflict, almost all the military was integrated.

uhh idk for sure but i think it makes it difficult to pump the oil through the oil rigs