Union soldiers were fighting for the freedom of slaves and reuniting the states. Confederate soldiers fought for protecting the confederacy. Yes, it did change over the war.
A huge gap between the rich and the poor, invaders from other places, emperors’ deaths and soldiers who were lazy in doing were duty were some of the reasons that cause the Roman Republic’s fall.
The Western part of Rome’s empire fell because fell because the military meddled a lot in politics and being a member of the political office was seen by people as an accountability. Revolutions, invasions by Christianity and Barbarians, and civil wars also contributed to the Roman Empire’s dissolution. The Eastern empire lasted for several centuries as they had a lot more resource compared to the Western empire.
The Harding administration responded to growing public fears of communists and anarchists by empowering the Justice Department to take broad measures to arrest and deport radicals.
In the war of 1812 around 243,885 people fought on behalf of Canada