Answer:
USSR, Poland, East Germany, Albania (until 1968), Bulgaria, Czechoslovakia, Hungary and Romania.
Explanation:
The Congress of Vienna<span> was convened in 1815 by the four European powers which had defeated Napoleon. The first goal was to establish a new balance of power in Europe which would prevent imperialism within Europe, such as the Napoleonic empire, and maintain the peace between the great powers.</span>
General Douglass commanded the US forces in Korea. Hoped I helped. ;)
