Both the union and confederate utilized private sectors as their main force of economy and both of them also heavily involved in agricultural sectors.
The thing that distinguish the two of them were the confederate relies too heavily on slave labour while the northern states relied on manufacturing equipment/technologies.
Well one relationship would be Hitler fought in both of them for one. They differ because Hitler was a General In WW2 and he was a soldier in WW1. Umm... In WW2, thousands of prisoners were killed in camps, and in WW1 there was not.
(I am pretty sure, I am going off of memory here)
They were also fought differently because there were two different presidents during both wars.
In WW2 was the first base we had ever had bombed, ever in WW1 we didn’t.
There are some similarities and differences there. Hope this helps?
<span>lincoln's main goal at the beginning of the civil war was </span>superior military leadership