Answer:
Grant, who was earning a reputation as a tenacious and determined leader, was appointed lieutenant general by Lincoln on March 10, 1864 and given command of all U.S. armies. He led a series of campaigns that ultimately wore down the Confederate army and helped bring the deadliest conflict in U.S. history to a close
In 1865, as commanding general, Ulysses S. Grant led the Union Armies to victory over the Confederacy in the American Civil War. As an American hero, Grant was later elected the 18th President of the United States (1869–1877), working to implement Congressional Reconstruction and to remove the vestiges of slavery.
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