Toyotomi Hideyoshi decided to invade Korea in order to gain control of it and China.
By the principle of check and balances, it is reassured that any branch of government or political group concentrates power in its hands.
The Congress has the power to overturn Supreme Court ruling, impeach the president, conduct trials and remove officers from the others branches of government.
Russia .. Canada is not European
One reason is because of the geography of Greece, and probably the main reason is to stop any monarchies from forming and ruling them.
