How did their relations deteriorate during the modernization of countries?

The modernization of countries in the 19th century led to the seizure of colonies, and there were not enough of them for everyone, so the struggle for the colonial redistribution of the world began. For example, relations between England and Germany began to deteriorate after 1871. The German economy began to grow rapidly, it essentially turned into an economic competitor for the same England. Germany’s fleet was strengthening and one of the reasons for the First World War was just its modernization.

Similarly, the expansion of Japan at the turn of the 19th and early 20th centuries, it was the result of modernization during the reign of Emperor Mutsuhito.