It was between the United States and Republican France
Answer:
It's Union
Explanation:
The Union was the northern cluster of states that wanted to stay with the United States during the Civil War. What we now call the South would be considered the Confederacy, which wanted to leave the United States and be on their own for many different reasons including taxes and slavery. Hope that helped, I'm not good and explaining things.
Because that flag represents a culture that most do not appreciate. It shows the mistakes of the USA and how we treated humans like animals it was immoral, and we needed to grow from it and remember the mistakes not celebrate them.