Political systems
Italy was a monarchy, while Germany was a republic. The Italian monarchy was largely symbolic, with real power held by the Prime Minister and the Parliament. In Germany, the President was the head of state, but the Chancellor was the head of government. The German Chancellor had much more power than the Italian Prime Minister.
Economic systems
Italy had a mixed economy, with both public and private sectors. Germany had a more capitalist economy, with a strong emphasis on free markets. The German economy was also more industrialized than the Italian economy.
Social structures
Italy had a more traditional social structure, with a strong emphasis on family and community. Germany had a more modern social structure, with a greater emphasis on individualism.
Foreign policy
Italy was a member of the Axis powers during World War II, while Germany was the leader of the Axis powers. Italy's foreign policy was largely determined by its relationship with Germany. Germany's foreign policy was more independent, and it was often at odds with Italy's interests.
Culture
Italy and Germany have two of the richest cultures in the world. Italy is home to some of the world's most famous art, architecture, and music. Germany is home to some of the world's most famous philosophers, scientists, and composers.
Overall, Italy and Germany are two very different countries. However, they also share many similarities. They are both developed countries with strong economies. They are both members of the European Union. And they are both major contributors to Western civilization.