What did president Roosevelt do as a show of American power

He dramatically expanded the system of national parks and national forests. After 1906, he moved to the left, attacking big business, proposing a welfare state, and supporting labor unions. Roosevelt mediated the Russo-Japanese War (1904–1905), for which he won the 1906 Nobel Peace Prize. -G00gle

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cultural/diplomatic relations. most medieval japanese   culture has chinese origins. writing, architecture etc.