UK forced China to open its doors to the opium trade in the 1830s. THe Chinese became addicted to opium as its price dropped.
https://www.unodc.org/documents/wdr/WDR_2008/WDR2008_100years_drug_control_origins.pdf
The Chinese are now flooding the US with fentanyl which is 100X more addictive than heroin. Thereby it is worsening the opioid crisis in the US,
https://www.wsj.com/articles/despit...yl-trafficking-is-still-a-problem-11566597494
https://www.unodc.org/documents/wdr/WDR_2008/WDR2008_100years_drug_control_origins.pdf
The Chinese are now flooding the US with fentanyl which is 100X more addictive than heroin. Thereby it is worsening the opioid crisis in the US,
https://www.wsj.com/articles/despit...yl-trafficking-is-still-a-problem-11566597494