Final answer:
A. Philip Randolph organized a protest and threatened a march on Washington to push President Truman to change the military treatment of Black soldiers. As a result, Truman issued Executive Order 9981, desegregating the armed forces in 1948.
Step-by-step explanation:
A. Philip Randolph was able to influence President Truman to change the way the military treated its Black soldiers by organizing a successful protest and threatening a march on Washington. In 1941, Randolph, along with the Brotherhood of Sleeping Car Porters, proposed a march on Washington to protest discrimination in the military. Fearing a major civil rights demonstration, President Truman issued Executive Order 9981, which desegregated the armed forces in 1948.
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