Syrian refugees, who used to harvest cotton in Raqqa before they fled when the Islamic State (IS) group took control of the Syrian town, work in a field of canabis plants in the village of Yammoune in Lebanon's Bekaa Valley on September 23, 2016. 
Large scale cannabis cultivation began in the 1920s to replace Lebanons failing silk industry and soon flourished into one of its most valuable exports. / AFP / PATRICK BAZ        (Photo credit should read PATRICK BAZ/AFP/Getty Images)