How did post-world war 1 treaties affect national borders in europe and asia

The Baltic states, given to Germany the previous year under the Treaty of Brest-Litovsk, which had taken Russia out of the war, became independent. Czechoslovakia and Yugoslavia were created; Romania was enlarged; and Poland was rebuilt from former Russian, German and Austro-Hungarian territories.The Austro-Hungarian, Russian and Ottoman - gradually ceased to exist and many new nations emerged. The Baltic republics of Latvia, Lithuania and Estonia are established

Austria and Hungary become two states, with considerably less territory than before the war

Explanation:

the answer is use of support