Military has a long history of hardcore drugs. There is an infamous history of WWII militaries using amphetamines (esp. in Allied militaries) and methamphetamines (in Axis militaries, brand name Pervitin) as performance enhancing drugs. You want a sneak peak into what Discordia's drug-dazed war has in store? Just ask Aimo Koivunen

I agree with eureka and just want to add that drug-funded or drug-spurred wars, large and small, have been around for at least two thousand years. One would like to think that we would be beyond that by now but perhaps not. If you're interested in the topic, this article gives a general overview of modern times use: https://knowablemagazine.org/content/article/society/2019/war-and-drugs-together-forever

This one looks at drug use among Germanic warriors during Roman times: https://scienceinpoland.pl/en/news/news%2C105776%2Cbarbarian-warriors-took-stimulants-battle-says-new-research.html