https://www.theguardian.com/world/2001/apr/01/internationalcrime.drugstradeThe Guardian, 1 Apr 2001. World's opium source destroyed. Western sources in Kabul yesterday confirmed poppy production in Afghanistan had virtually ceased. This follows an edict issued last year by the Taliban's reclusive leader, Mullah Mohammed Omar, declaring opium to be un-Islamic.
https://en.wikipedia.org/wiki/United_States_invasion_of_AfghanistanIn late 2001, the United States, supported by its close allies, invaded Afghanistan and toppled the Taliban government. The invasion's public aims were to dismantle al-Qaeda, which had executed the September 11 attacks weeks prior, and to deny it a safe base of operations in Afghanistan by removing the Taliban government from power.
Few people remember it now, but there used to be a major centre of opium production in the Balkans:
In 1908 Austria-Hungary annexed Bosnia and Herzegovina. Part of Bosnia and Herzegovina's society hoped to free the country from Austro-Hungarian rule and establish a state led by Serbia. A Serbian nationalist organisation called Mlada Bosna was formed between 1913 and 1914. Its members included Gavrilo Princip, who on June 28, 1914 assassinated Archduke Franz Ferdinand and his wife Sophia in Sarajevo, which led to the outbreak of World War I.
Now do you understand why Austria needed the Balkans and the reason for the WWI?
The British, as major players in this market, were extremely disadvantaged by the poppy fields in the Balkans under Austrian control, given the previous Opium wars.