There is a role for the United Nations still as a Peacekeeper in today's world because they can't necessarily force a country to make or keep peace but they can go to a country with a smaller war going on and slowly make peace and as they progress with the small countries they can move onto the bigger countries to make peace.
After Qin Shi's was killed in 207 BC the dynasty collasped totally because the power was too centralized.
The Athens
The Metics
The Freedman
The Slaves
The Hungarian revolution began in budapest
