Answer:
Austria, Hungary, Czechoslovakia, and Yugoslavia
Explanation:
The former empire of Austria-Hungary was dissolved, and new nations were created from its land: Austria, Hungary, Czechoslovakia, and Yugoslavia.
Democratic Kampuchea and Kazakh Soviet Socialist Republic, Soviet Union also Ottoman Empire (territories of present-day Turkey, Syria and Iraq) and Ottoman Empire (territories of present-day Turkey, Syria and Iraq) so there is all of the places genocide has occurred good luck my dude
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