They also literally financed their investments in Manchuria through the poppy trade of Opium (and maybe heroin). The League of Nations investigated and concluded in... [url=https://en.wikipedia.org/wiki/Manchukuo#Drug_trafficking]"In 1937, it was pointed out in the League of Nations that 90% of all illicit white drugs in the world were of Japanese origin..."[/url]

I'd get the article they refer to but it seems to be dead.