How did the map of Europe change after WW1?

World War I involved 32 nations from 1914 to 1919. It redrew the world map and reshaped many borders in Europe. The collapse of the Russian Empire created Poland, the Baltics, and Finland. The Austro-Hungarian Empire dissolved into Austria, Hungary, Czechoslovakia, and Yugoslavia.

Explanation:

hi there!

c is your answer

~courtney

answer; i believe the correct answer is (the willamete valley);