4: The reason for the war changed from fighting to preserve the union to a war to free the slaves.
1. Even before the Emancipation Proclamation, no woman could enlist (legally) to join the Union Army.
2. The Emancipation Procalamation was about freeing the Confederate slaves, not employing former enslaved Africans.
3. The Emancipation Procalamation was issued on Jan. 1, 1863, while the war ended on Apr. 9, 1865.