The Austro-Hungarian Empire was a dual monarchy that once existed in Central Europe.

The history of the British Empire occupies a particularly important part in world history.

The history of the Empire of Japan is very interesting.

The Imperial Japanese Navy and Army were a powerful military force in Japan.

He said he couldn't agree with the views of the revisionists.

The German Democratic Republic was once a socialist country.

My dream is to visit the Federal Republic of Germany someday.

The Imperial Japanese Army was a Japanese military force that existed from the Meiji era to the Showa era.

The Imperial Japanese Navy was once the navy of Japan.

The Federal Republic of Germany is located in Europe.