Answer:
This Emancipation Proclamation was carried out to achieve two objectives:
1) The Emancipation Proclamation was a calculated military strategy to secure victory for the Union Army. The Emancipation Proclamation stated clearly that it was "upon military necessity." Thus, it was not a proclamation to free all slaves in the whole of the United States but only in the confederate states that were rebelling against the United States, that is mainly the Southern States. It was also an attempt to recruit more soldiers for the Union by attracting African Americans to join the Union Army as it specifically decreed that freed slaves could join the Union Army, thereby increasing the Union Army's manpower.
2) The Emancipation Proclamation altered the purpose of the US civil war from just preserving the Union to also ensuring freedom for slaves. This addition of a humanitarian aspect galvanized Britain and France to end their support for the Confederate States. With this diplomatic strategy, the Confederacy was tremendously weakened as they lost their former foreign allies.
Explanation:
The Emancipation Proclamation was done on September 22, 1982 at Washington City, to be effective from January 1, 1863 by President ABRAHAM LINCOLN. According to history, the civil war, during which this Emancipation Proclamation was issued, was triggered by disagreements over economic interests, cultural values, federal government control of states, and slavery in the US.