Answer in detailed
Westward imperialism impacted Japan. The Japanese had been closed to world trade until the 1850s. The United States, under the command of Commodore Matthew Perry, helped to open Japan to world trade. While Japan was never colonized by the western imperial powers, they realized that they would be foolish to resist the western desire to open their country to world trade.
Japan was really helped by opening their country to world trade. Japan realized it needed to become more modern if it wanted to be a world power. Japan did become an industrialized nation, and it eventually became a world power. Japan was able to learn from the western imperial powers. This impacted their development in positive ways.
Japan was unhappy with the some of the results of the Washington Naval Conference. Japan didn’t like the Five-Power Naval Limitation Treaty because Japan was allowed to have only three warships for every five that Great Britain and the United States were allowed to have. Japan felt it was being treated as an unequal second-class citizen by the western imperial powers with the provisions of this agreement. This helped to motivate Japanese aggression in the 1930s.
Japan benefited significantly from western imperialism.