One of Truman's greatest achievements as president, which utilized the greatest extent of his executive powers, was the racial desegregation of the armed forces.
“Nathanael Greene in The American Revolution. Nathanael Greene (1742–1786) was a general in the American Revolution who also served in the Rhode Island assembly. He fought with George Washington at the battles of Trenton, Brandywine, Germantown, and Valley Forge”. -shmoop.com
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The answer is D. to attempt government reform
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