(A) To support the abolitionist movement
(B) ** To help the Union win the war
(C) To get European allies for the Union
EXPLANATIONS BELOW
Concept note-1: -From the first days of the Civil War, enslaved people had acted to secure their own liberty. The Emancipation Proclamation confirmed their insistence that the war for the Union must become a war for freedom. It added moral force to the Union cause and strengthened the Union both militarily and politically.
Concept note-2: -The Emancipation Proclamation was an executive order issued by Abraham Lincoln on January 1, 1863. It proclaimed the freedom of slaves in the ten Confederate states still in rebellion. It also decreed that freed slaves could be enlisted in the Union Army, thereby increasing the Union’s available manpower.
Concept note-3: -Impact of the Emancipation Proclamation Black Americans were permitted to serve in the Union Army for the first time, and nearly 200, 000 would do so by the end of the war. Finally, the Emancipation Proclamation paved the way for the permanent abolition of slavery in the United States.