Austria-Hungary is a nation in Europe.
Austria-Hungary didn't form until 1843 and soon it became a great power up until the First World War, when they were defeated and lost a bit of land. Then, in the Second World War they were on the Centre Powers side again and lost as well. As a result, Slovakia declared independence and some more of its area was given to Soviet Union; and was a satellite state of the Soviets too. In 1985, Austria-Hungary lost its communist government and became a democracy.