Among the countries listed, the one that was not created following World War I is likely the United States. The U.S. was established long before the war, gaining independence in 1776. Other countries that emerged after World War I, such as Czechoslovakia and Yugoslavia, were formed as a result of the geopolitical changes following the conflict.
The world doesn't 'need' war. War is the result of a breakdown in relations between countries.
World War.
Poland, Germany
Among the countries listed, the one that was not created following World War I is Japan. Japan was an established nation long before the war, having undergone significant modernization during the Meiji Restoration in the late 19th century. In contrast, many new countries in Europe, such as Czechoslovakia and Yugoslavia, were formed as a result of the territorial changes and treaties that followed the war.
9
Austria and Hungary
UN
Czechoslovakia, Yoguslavia,Jordan
Germany
The League of Nations
As a result of World War 2.