Answer:
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.
This is the kind of concept a utilitarian would agree on. If the result is positive for a large group of people, we should seriously consider doing it.
However, I would like to comment on this concept. In my opinion (and that's what you're asking for) there are situations in which the ends don't justify the means. You can e.g. think about mass-bombings to fight against terrorism. However, the possibility exists that innocent people will be hit, and will die. Therefore, the end don't always justify the means (in my opinion).
Well, the Magna Carta was based off of limited government so that would mean they were trying to limit the opportunity to get an all power government or dictator<span />