Just in case anybody doesn't believe you: http://www.cnn.com/2016/03/23/politics/john-ehrlichman-richa...

Just in case somebody believes you:

https://en.wikipedia.org/wiki/Opium_Wars

https://en.wikipedia.org/wiki/Cannabis_in_Egypt#Ottoman_peri...

https://en.wikipedia.org/wiki/Cannabis_in_Singapore

https://en.wikipedia.org/wiki/International_Opium_Convention

There are also references of the ban in Turkey and Greece in 1890 everywhere but without good sources.

The above should be enough to realize that that different nations made various drugs illegal without the US influence and without intention to oppress black panthers and communists.

Afaik, countries are often required to (sometimes "unofficially") comply with a variety of US "customs" before various deals (trade, etc) will be signed.

I completely believe that to control the world, you must control people's minds, and to control people's minds, you must control drugs.