It acheved its main aim - to prevent Lee from invading Pennsylvania, and to score a Union win, to give Lincoln the credibility to issue his Emancipation Proclamation.
But Lincoln believed that McClellan should have been able to destroy Lee's army outright, and fired him after months of disappointing performance.
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The union won the battle Antietam in Maryland. It was the bloodiest battle in the war.
Yes on 17 September 1862 in the bloodiest single day of battle in American History to date at what is called the Battle of Antietam.
The great battle of Gettysburg NEW RESPONDENT The Battle of Antietam.
there was no battle of antietam
2,108 Union men died in battle of Antietam