The United States was in a peculiar position. It had colonies, but they weren’t its lifeline. Oil, cotton, iron, coal, and many of the important minerals that other industrial economies found hard to secure—the United States had these in abundance on its enormous mainland. Rubber and tin it could still purchase from Malaya via its ally Britain. It did take a few useful goods from its tropical colonies, such as coconut oil from the Philippines and Guam and “Manila hemp” from the Philippines (used to make rope and sturdy paper, hence “manila envelopes” and “manila folders”). Yet the United
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