Yea, yea, what a load. Had the North not attacked the South, there would have been no war, period. Why? Because the South would have had everything it wanted.
Why are you having such an issue with the facts? The North attacked, finally defeated, and then occupied the South. Why? Because they felt compelled to force themselves on the South and Lord over them. That is as aggressive as you can get.
Why are you having such an issue with the facts? The south provoked war with the union, attacked union possessions, and declared war against its neighbors. That is as aggressive as you can get.