They watched the spectacle of whites marching away to war and the attendant fear of wives and mothers, people whom the slaves, in many cases, knew intimately; and they saw the grief that exploded when those same soldiers came home mangled or were sent home dead.
The answer is Federalism if you are using Apex
Khemer Rougue- Cambodia
Tutsi Tribe- Rwanda
Militia- Darfur
Hope this helped :)
The answer is Great Depression
Having more people living in and around cities than ever before