Nixon declared the War on Drugs in 1971.
https://en.wikipedia.org/wiki/Chasing_the_Scream#Background_...
I pay taxes, do you call that a War on Income? If so, when did it start?
No one ever called this a War on Income. My point is to the OP that claims the War on Drugs has been going on for a hundred years by pointing to any regulation of drugs. Lots of things are regulated and we do not generally call regulation a 'War on' something. It is okay to tone down the hyperbole.