What is it called when a stronger nation takes over a weaker nation

In a modern democracy all elected officials serve for a certain number of terms then must retire a high school sophomore and a senior citizen may vote at the polls together a united states senator votes on immigration law on behalf of your mother through indirect ballot all democracies have a two chamber system of representation united states citizens live in a direct democracy

What was the relationship between japan and the united states in the early 1900s?

What is roosevelt’s corollary ? where did it specifically deal with?