For years, china had enjoyed a favorable balance of trade with foreign nations. but the british trade of with china disrupted the economy in the early 1800s and led to wars between the two nations. nextreset

Opium



Trade of the drug, Opium (opioids) with China caused conflict. The drugs caused an addiction in China that began to disrupt normal life. When China banned import of opium, it caused conflict with British merchants. This eventually led to Opium War in 1839.