Antietam was the most devastating one-day battle of the Civil War. A victory for the South could have been the turning point of the war. While neither of the armies would in the end be victorious in this battle, Antietam would be a major success for the Union. Which would be the best way to improve the quality of writing? Rearrange the sequence of ideas. Vary the sentence length. Redefine the purpose. Replace the be verbs with action verbs.