In late September 1918, what country began their own massive attack on Germany and broke through enemy lines?

It was France, with the help of Britain, France and United States.

Explanation:

During WW2 the Western Front was a scene were most of the bloodiest battles happened. France managed to stop German troops, which was one of the main reasons for defeat of Germany. When they managed to break the famous Hindenburg Line, it was obvious that the war is about to end soon.

in an absolute  monarchy, the  monarchrules as an autocrat, with absolutepower  over the state and government — for example, the right to rule by decree, promulgate laws, and impose punishments. the  monarch isnominally sovereign but the electorate, through their legislature, exercise political sovereignty.