How did french nationalism increase tensions in europe? france was a strong supporter of pan-slavism. france considered alsace and lorraine to belong too france, rather than germany. france and britain clashed over control of morocco. france and germany became rivals in a face for naval superiority.

Nationalism has increased the tensions among nations in Europe. The main reason for this is that this resulted in intense competition among these nations. Each wanted to overpower one another. In French nationalism, what resulted to this nationalism is that, France and Germany became rivals in face for naval superiority. The answer is the last option.

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