Alsace-Lorraine: This region had been annexed by Germany after the Franco-Prussian War in 1871. France had never accepted this loss and was determined to regain the territory.
Economic rivalry: France and Germany were both major economic powers in Europe and competed for trade and resources. This competition led to tension and conflict between the two countries.
Imperialism: Both France and Germany had overseas empires and competed for control of colonies and resources. This competition led to conflict between the two countries in Africa and other parts of the world.
Nationalism: Both France and Germany were strongly nationalist countries. This nationalism led to a sense of rivalry and hostility between the two countries.
The arms race: France and Germany were engaged in an arms race in the years leading up to World War 1. This arms race created a sense of insecurity and fear between the two countries.
These are just some of the reasons why France and Germany were enemies in World War 1. The conflict between these two countries was a major factor in the outbreak of war in 1914.