be used to further Japan's colonial interests. The rise of Japan's militarism in the late 1930s saw Japan rely more heavily on the resources of their colonies. As World War II progressed, opium licensing became a source of much-needed revenue for Japan's war efforts. Japan used Taiwan's resources and manpower to support them in their war effort as well as the revenue of the opium trade. The opium trade was so profitable for the Japanese government and supported the needs of the military to such an extent that in 1942 the Japanese government expanded their revenue operation to included 277 kg of cocaine, which was processed by the Japanese colonial government in Taiwan. References Taiwan under Japanese rule Drug policy of Taiwan