I always get a little confused. Was the Union the side of the Blacks or the Confederates?

Question

And why is it that the Union had better advantages than the south?
Thanks
-mysterychicken

Answer 1

the union was not for slavery and they had more factories, a bigger population, and just a better trained army

Answer 2

The Union was against secession. It was made up primarily of northern states. That is where the primary industry was. The South (Confederacy) was for states rights, in other words the states could choose whether they wanted to be part of the US or not. The south was primarily an agricultural society.

Answer 3

thanks for the long answer but i still don't get it? just a simple question:
union=?
confederates=?

Answer 4

nevermind i got it
thanks to both of you :)
-mysterychicken