The Taliban's Trojan horse: What really happened after Afghanistan's opium ban

Wars have been fought over land, over succession, over a woman said to have launched a thousand ships toward Troy. Opium got its own war twice, in 1839 and again in 1856, but not the kind that name suggests. Britain went to war for the right to keep selling opium into China, after the Qing government tried to ban it and started burning British stockpiles in Canton harbour. China lost both wars, and lost control of its own opium market for the following century.