President lincoln issued the emancipation proclamation in response to union victory based on the anaconda plan. confederate victory at the battle of antietam. confederate victory at the first battle of bull run. union victory at the battle of antietam.

President Lincoln issued the Emancipation Proclamation in response to the Union victory at the Battle of Antietam.

Explanation:

The Battle of Antietam was the first major armed clash of the Civil War to occur on the territory of the Union.

It took place in September 17, 1862, in the vicinity of Sharpsburg and Antietam Creek, in Washington County, Maryland.

This battle of the Maryland campaign remains to this day the bloodiest in the history of the United States (to take place in a day) with nearly 23,000 dead, wounded, prisoners or missing.

Despite the larger forces of the North, McClellan did not make a strong attack and destroyed the army of the South. However, Lee's invasion of Maryland was over. The Army of the South withdrew to Virginia without being disturbed by the cautious McClellan. Although tactically undecided, this battle had a unique meaning as a strategic victory that gave President Abraham Lincoln enough confidence to announce his proclamation of Emancipation, and discouraged the English and French governments from recognizing the southern states.

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