A Promising Tropical Medicinal Plant: Taiwan as the Production Hub of Japan's Coca Empire.

Before World War II, Taiwan became the second-largest coca leaf production base in Asia, second only to Java, contributing to Japan's position as the world's largest exporter of cocaine. While Japan's opium empire has been the subject of extensive academic inquiry, its coca empire has received far less attention. This article explores Taiwan's role in Japan's dual empire of opium and coca, focusing on the environmental and historical factors that enabled the island to rapidly expand coca production.