The battle of antietam severely weakened the union army. shifted control of the civil war from the south to the north. was the last battle that took place in the eastern united states. convinced europe to support the confederacy.

Option: Shifted control of the Civil War from the South to the North.

Explanation:

The Battle of Antietam was fought in Maryland in America during the Civil War. It became the first battle for the South to fought on the defensive mode rather than going offensive that they did in several major campaigns. General Robert E. Lee leads the Southern troops and in the Northern soldiers by George B. McClellan (General). The outcome of the battle was devastating for both side because of the casualties they suffered. The victory of the North changed the scenario of the war as it came in favor of the North.

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