It led to a significant decrease in slavery and the slave trade
To gain the trust of his soldiers, to motivate them and keep them happy and inspired
I assume your talking about the HUNS... When the empire split in two the east had more gold and more resources and the dying west had to suffer all the barbarian attacks like the huns... The East quite simply was more prepared and had more walls and guards to defend their border also the Eastern Empire had the river danube north of them which helped deflect the Hunnic invasions and other barbarian invasion more west...
When people industrialized items for war it made militarism stronger. Militarism is good for INDUSTRIALISTS who manufacture weapons.
I believe you're looking for the Missouri Compromise.
