Question

what had abraham lincoln expected before the first battle of bull run?
o slaves would rebel and join the northern forces.
o the south could easily be defeated.
o the union could continue with both free states and slave states.
o he would have to recruit many more soldiers.

Explanation:

Before the First Battle of Bull Run, Lincoln and many in the North underestimated the Confederacy's strength and expected a quick victory over the South. There was no strong indication he expected slaves to rebel and join the North at that point, nor was there a sense that he thought he'd have to recruit many more soldiers right away. The idea of the Union continuing with both free - states and slave - states was more of a pre - war situation, not a specific expectation before this battle.

Answer:

The South could easily be defeated.