America in the 1930’s was selling scrap iron and fuel aviation to Japan, turning a blind eye to those who suffered from it. They never thought they were indirectly committing war crimes. They never thought it would help in the massacre of thousands of Chinese, Malaysians, Filipinos, Indonesians, Vietnamese, and Koreans (nope, they were the good guys). They probably didn’t care, wrapped up in the miseries of their own Great Depression. They probably thought they were untouchable, separated by oceans from anything that could possibly harm them. They also probably never thought, not for one second, that all that scrap metal and fuel aviation would come back the same way it left - raining down on them on December 7, 1941, in Pearl Harbor, Hawaii.
Inspired by Lisa See’s “Shanghai Girls”
Image from http://webpages.charter.net/mcarolan/shipyard.jpg