Geography changed too. After the war the Treaty of Versailles carved out new countries from what remained of the old pre-war empires. Independence was granted to the Baltic states, which had been handed to Germany in 1918 as part of the Treaty of Brest-Litovsk, which ended Russian involvement in the first world war. Poland was reconstituted from former Russian, German and Austro-Hungarian territories, and Czechoslovakia, Yugoslavia and a larger Romania were created.
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