How should Roosevelt's racial language be read?

How might Theodore Roosevelt's views on training relate to racial prejudice in prewar armed forces?

He emphasized training over presumed national character, but his own writing still contains troubling racial ideas and language that require critical reading.

A viewer asks how Theodore Roosevelt might have regarded racial prejudice in Japan's prewar armed forces. Roosevelt's insistence that a trained force should be judged by its preparation offers one clue. He also expressed troubling racial ideas and used language that would be unacceptable today. The suggestion that some phrasing catered to contemporary politicians remains an interpretive possibility, with no proof that Roosevelt rejected those ideas privately.