http://en.wikipedia.org/wiki/Jackie_Robinson
Jackie Robinson
Jack Roosevelt "Jackie" Robinson (January 31, 1919 – October 24, 1972) was the first black Major League Baseball (MLB) player of the modern era.
In 1942, Robinson was drafted and assigned to a segregated Army cavalry unit in Fort Riley, Kansas. Having the requisite qualifications, Robinson and several other black soldiers applied for admission to an Officer Candidate School (OCS) then located at Fort Riley. Although the Army's initial July 1941 guidelines for OCS had been drafted as race-neutral, practically speaking few black applicants were admitted into OCS until after subsequent directives by Army leadership. As a result, the applications of Robinson and his colleagues were delayed for several months. After protests by heavyweight boxing champion Joe Louis (then stationed at Fort Riley) and the help of Truman Gibson (then an assistant civilian aide to the Secretary of War), the men were accepted into OCS. This common military experience spawned a personal friendship between Robinson and Louis. Upon finishing OCS, Robinson was commissioned as a second lieutenant in January 1943. Shortly afterward, Robinson and Isum were formally engaged.
After receiving his commission, Robinson was reassigned to Fort Hood, Texas, where he joined the 761st "Black Panthers" Tank Battalion.
Robinson boarded an Army bus with a fellow officer's wife; although the Army had commissioned its own unsegregated bus line, the bus driver ordered Robinson to move to the back of the bus. Robinson refused. The driver backed down, but after reaching the end of the line, summoned the military police, who took Robinson into custody. When Robinson later confronted the investigating duty officer about racist questioning by the officer and his assistant, the officer recommended Robinson be court-martialed. After Robinson's commander in the 761st, Paul L. Bates, refused to authorize the legal action, Robinson was summarily transferred to the 758th Battalion – where the commander quickly consented to charge Robinson with multiple offenses, including, among other charges, public drunkenness – even though Robinson did not drink.
By the time of the court-martial in August 1944, the charges against Robinson had been reduced to two counts of insubordination during questioning. Robinson was acquitted by an all-white panel of nine officers. Although his former unit, the 761st Tank Battalion, became the first black tank unit to see combat in World War II, Robinson's court-martial proceedings prohibited him from being deployed overseas, thus he never saw combat action. After his acquittal, he was transferred to Camp Breckinridge, Kentucky, where he served as a coach for army athletics until receiving an honorable discharge in November 1944.