In addition to the 'allegations' below, there was a scientific report that was recently unearthed that went into detail on the US use of smallpox, cholera and anthrax.
See https://medium.com/insurge-intelligence/the-long-suppressed-korean-war-report-on-u-s-use-of-biological-weapons-released-at-last-20d83f5cee54
This was also only a few years after the US provided immunity and paid ~$40 million to the Japanese war criminals who operated Unit 731 (which was also covered up for decades).
In addition to the 'allegations' below, there was a scientific report that was recently unearthed that went into detail on the US use of smallpox, cholera and anthrax.
See https://medium.com/insurge-intelligence/the-long-suppressed-korean-war-report-on-u-s-use-of-biological-weapons-released-at-last-20d83f5cee54
This was also only a few years after the US provided immunity and paid ~$40 million to the Japanese war criminals who operated Unit 731 (which was also covered up for decades).