Civil War leaders played crucial roles in the American Civil War (1861-1865), which was fought between the Union and the Confederacy. Key figures included Ulysses S. Grant, who led Union forces to victory, and Robert E. Lee, the commander of the Confederate Army. Other notable leaders were William Tecumseh Sherman, known for his "March to the Sea," and Stonewall Jackson, a skilled Confederate general. These leaders had significant impacts on military strategies and outcomes during the war. Their decisions shaped battles such as Gettysburg and Antietam, influencing the course of American history. The legacies of these leaders continue to be studied and debated today.