There was no formal declaration of was against the Confederacy, which can ONLY come from congress... as the Union deemed the secession illegal, it never occurred; to do otherwise would have legitimized the Confederate States of America opening the door to a possible recognition and assistance by Great Britain.
Secondly, as ONLY congress has the power to declare war, the Civil War was, in effect fought using what is known today as "Executive Powers".
Simply because the war was not originally about slavery, and Lincoln was not an Abolitionist. He decided to turn the war into a fight against slavery as the only way of keeping Britain and France from supporting the Confederates - it would have made them look pro-slavery themselves.
The Battle of Antietam (1862)
He didn't use the war to get rid of slavery. He turned it into a war against slavery in order to keep the British from supporting the Confederates, which at that time could have meant Lincoln losing the war.
Abraham Lincoln was against the act of slavery. Lincoln took part in the Civil war as a leader in the battle.
Abraham Lincoln hired Clara Barton in the civil war
yes, Abraham Lincoln was against slavery and during the civil war he issued the emancipation proclamation of 1863.
Because the British were threatening to support the Confederates, and by turning the war into an official crusade against slavery, Lincoln made it impossible for the British to do this without looking pro-slavery.
Antietam
Stephen Douglas debated with Lincoln against slavery
against slavery and the south was for slavery!! <3
There was a war going on over slavery against the North and the South.
He was fighting against the south so he was with the north fighting against slavery.