Considering the resources available to the union why was the union unable to defeat the confederacy quickly?

The most convincing 'internal' factor behind southern defeat was the very institution that prompted secession: slavery. Enslaved people fled to join the Union army, depriving the South of labour and strengthening the North by more than 100,000 soldiers. Even so, slavery was not in itself the cause of defeat.

Explanation:

a because i tried to vote with just my college id and the answer was no