Czechoslovakia
Lithuania, latvia, estonia, finland, yugoslavia, czechloslovakia. several more but these are the main ones.
Alliances have always been a part of European politics. Initially between church and state, but as countries became more independent, alliances were formed between them. Alliances are always formed for the same reason, to achieve a "balance of power" whether it be military or economic.
After World War I, several new countries emerged as independent nations due to the dissolution of empires and the redrawing of borders. Notable examples include Czechoslovakia, Yugoslavia, and Poland, which regained independence after being partitioned or under foreign rule. Additionally, the Baltic states of Estonia, Latvia, and Lithuania declared independence from Russia. These changes were largely influenced by the Treaty of Versailles and other peace treaties that aimed to address national self-determination.
Britain, France, and Russia were the countries that formed the Triple Entente
Delaware
All present day countries were newly formed at some point in history
Finland
yugoslvia
jerkinonburg
Latvia, Lithuania, Estonia, Finland, or Yugoslavia
turkey
Lithuania, latvia, estonia, finland, yugoslavia, czechloslovakia. several more but these are the main ones.
Poland, Finland, Czeschslovakia, Yugoslavia, Lithuania, Latvia, Estonia, Hungary
Tanzania
Yugoslavia
Malaysia was formed in 1963 but became interdependent in 1957
Vatican City was formed with the signing of the Lateran Treaty in 1929 by Pope Pius XI and Benito Mussolini.