Europe had difficulty after world war i because:

The First World War destroyed empires, created numerous new nation-states, encouraged independence movements in Europe's colonies, forced the United States to become a world power and led directly to Soviet communism and the rise of Hitler. The first world war had a devastating impact on Europe.

Explanation:

because its important to learn about other countries and how high tech they are compared to us. also its good to learn about other cultures and how ours differs and in common also we need to learn about companies that we still buy since they ship it here.