War, Conflict, Trauma, and Substance Use

"Conflicts and wars are known to contribute to a higher burden of mental health problems among specific individuals who experience trauma as well as among those living in or near to conflict zones, even across generations [3–5]. Post-traumatic stress disorder is mostly recognized as the mental health burden; however, during conflict there is also significant disability from common mental health problems such as depression, anxiety, and substance misuse. From the Somalian conflict, these have been linked with the poverty associated with economic fragmentation and with a reduction of basic security functions and safety [6]. The link between armed conflict and the production and trafficking of illicit drugs has been noted in the literature, and recent research indicates a link between lootable resources, including opioids, and conflict duration [7]."

Source: 

Patel, S. S., Zvinchuk, O., & Erickson, T. B. (2020). The Conflict in East Ukraine: A Growing Need for Addiction Research and Substance Use Intervention for Vulnerable Populations. Forensic science & addiction research, 5(3), 406–408.