1618 - 1648 CE
"Dutch courage" comes to Britain during Thirty Years War

British soldiers, fighting alongside their Dutch counterparts during the Thirty Years War, were introduced to "Dutch Courage." The Dutch soldiers would sip Genever (gin) from small bottles they kept on their belts, after which they fought valiantly. British soldier began to take up the practice, and during these years the popularity of Genever increased in England. Likely, Genever had been introduced to London by the Flemish Protestant refugees who fled Antwerp in 1570, but it had not become particularly popular among English drinkers.

Source: https://www.ginfoundry.com/insights/genevers-forgotten-history/

Drugs: Alcohol
Regions: Netherlands, UK (England, Scotland, Wales, Northern Ireland)
Topics: Drugs and war