Because U.S wanted to impress Japan with the Great White Fleet because Japanese Government wanted to expand territorially,and this was the U.S's attempt to stop their expansion..
The United States wanted to impress Japan with the Great White Fleet to demonstrate its naval power and protect American interests in Asia. This initiative occurred from 1907 to 1909 during President Theodore Roosevelt's administration, as Japan's growing influence posed potential threats. Ultimately, the Great White Fleet aimed to foster better relations and establish the U.S. as a significant power in the Pacific.
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