Answer :
Final answer:
The significant territorial changes in Europe post-World War I resulted from political shifts, nationalist movements, and border reorganization.
Explanation:
Europe before and after World War I Territorial Changes:
- The First World War led to significant territorial changes in Europe.
- Austria-Hungary dissolved into Austria, Hungary, and Czechoslovakia.
- Creation of new nations like Poland, Lithuania, Latvia, Estonia, and Finland out of former Russian empire territories.
These changes were a result of political shifts, nationalist movements, and the reorganization of borders post-WWI.
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