In December 1987, the UN General Assembly designated June 26 as the International Day against Drug Abuse and Illicit Trafficking, expressing its determination to strengthen international cooperation toward a world free of drug abuse. The date commemorates historic efforts against the opium trade in the 19th century. Drug abuse causes severe physical, psychological, and social harm affecting individuals, families, and communities, while illicit trafficking fuels organized crime and undermines security and stability in many countries. Millions of people worldwide are estimated to suffer from drug use disorders. The day aims to raise awareness of the dangers of drugs, support prevention, treatment, and rehabilitation programs, and call for closer international cooperation to combat illicit trafficking networks, while addressing the root causes of drug use in communities.