What nations were formed following world war?

Following World War I, several nations were formed or redefined, most notably through the Treaty of Versailles and the dissolution of empires. New nations such as Poland, Czechoslovakia, and Yugoslavia emerged, while the Austro-Hungarian and Ottoman Empires were dismantled. World War II also led to significant territorial changes, resulting in the creation of countries like Israel in 1948, and the division of Germany into East and West. Additionally, decolonization in the post-war period saw many nations in Africa and Asia gain independence.