Why did Union leaders believe the issuance of the Emancipation Proclamation would harm the South's ability to wage war?

A-By By establishing abolition as a goal of the Union, the Union was able to gain the support of Great Britain.

B- By encouraging slaves to flee North, the Confederacy would lose a key source of labor for the war effort.

C-By offering amnesty to Confederate deserters, the Confederate Army would rapidly decrease in size.

D-By freeing all slaves held in the United States, the Union hoped to attract more soldiers to its cause.

1 answer

B- By encouraging slaves to flee North, the Confederacy would lose a key source of labor for the war effort.