Only two completely new countries in Europe were formed after WW1 - Yugoslavia and Czechoslovakia. The former broke up amid much bloodshed in the 1990s, and latter peacefully in 1993. Poland, which had been wiped off the map in 1795, was revived. The Baltic republics - Estonia, Latvia and Lithuania asserted their independence. Romania doubled in size.
Nationalism.
This question does not indicate which government, nation or type of expansion. In Europe during World War 2 monarchies ruled the nations and there were no expansions. They had to give up their monarchies after World War 1. This allowed nationalism and democracy to begin in Europe. When Hitler came into power he changed Germany's rule to a dictatorship. Then after World War 2 Germany was able to return to democratic type government. In the US the only type of expansion was the United Nations being established in New York City.
decisions by the United Nations to create new nations
After World War I, several new nations were formed due to the redrawing of borders and the dissolution of empires. Notable new nations included Czechoslovakia, Yugoslavia, and Poland, among others. Additionally, the Austro-Hungarian and Ottoman Empires disintegrated, leading to the creation of multiple successor states. In total, around 20 new nations emerged from the geopolitical changes resulting from the war.
The new nations of Europe often reached the brink of war due to a combination of unresolved territorial disputes, ethnic tensions, and nationalist aspirations. The aftermath of World War I and the Treaty of Versailles left many borders contested and minority groups feeling marginalized. Additionally, the rise of militaristic ideologies and economic instability contributed to a climate of aggression and competition among these nascent states. These factors, coupled with the failure of international diplomacy, frequently pushed nations toward conflict.
nationalism
Nationalism.
because of their rush for raw materials and colonies.
This question does not indicate which government, nation or type of expansion. In Europe during World War 2 monarchies ruled the nations and there were no expansions. They had to give up their monarchies after World War 1. This allowed nationalism and democracy to begin in Europe. When Hitler came into power he changed Germany's rule to a dictatorship. Then after World War 2 Germany was able to return to democratic type government. In the US the only type of expansion was the United Nations being established in New York City.
decisions by the United Nations to create new nations
Other nations in Europe worked to profit from the New World as Spain did.
All the nations viewed each other as competitors. All the nations of Europe were willing to go to war to expand their nation at the expense of others
All the nations viewed each other as competitors. All the nations of Europe were willing to go to war to expand their nation at the expense of others
All the nations viewed each other as competitors. All the nations of Europe were willing to go to war to expand their nation at the expense of others
the world war 2
After World War I, global economic conditions affected Europe profoundly. In the late 1920s and 1930s, in particular, the economic depression affected western nations such as France and Great Britain so severely that their military budgets were drastically reduced. In Germany, the same depression worsened already harsh conditions, thereby paving the way for the Nazi Party to attain power.
Depending on any number of variables, any war can expand or contract. Post WW 2 saw an expansion of new nations as old colonial empires gave way to new nations. Both sides of the Cold War sought friends and alliances among the new nations that were scattered around the world.