Which countries on both sides of the atlantic experienced revolution during the late 18th and early 19th century?

What refers to the existence of more than one level of government in the country

What made it increasingly difficult for president roosevelt to stay neutral during world war ii?

Which phrase correctly completes the statement? "the korean war " lasted 3 years. has never ended. was won by north korea. was won by south korea lasted 3 years. has never ended. was won by north korea. was won by south korea.