They make valuable trade items and things they need to survive.
As a powerful country in its own right, Japan would be able to assert its influence over world events.
influenced the British Isles and parts of Russia. The answer is C Norse culture
Remember, World War 1 was the first of two wars, which started on July 28th, 1914 and ended on November 11th, 1918.
A major factor that led the United States to enter World War 1 would be because of Germans attacking American ships that had Americans on it, using submarines. Another reason would be because of a British telegram, called the Zimmerman Telegram/Note, that offered an alliance between Germany and Mexico.
~Hope I helped!~