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First Opium War 1839-1842

State Entry Exit Combat Forces Population Losses
Britain 1839 1842 50000 23000000 10000
China 1839 1842 2000000 390000000 30000

The Opium Wars arose from China's attempts to suppress the opium trade. British traders had been illegally exporting opium to China, and the resulting widespread addiction was causing serious social and economic disruption in the country. In 1839 the Chinese government confiscated all opium warehoused at Canton by British merchants. The antagonism between the two sides increased a few days later when some drunken British sailors killed a Chinese villager. The British government, which did not trust the Chinese legal system, refused to turn the accused men over to the Chinese courts.

Hostilities broke out, and the small British forces were quickly victorious. The Treaty of Nanking, signed Aug. 29, 1842, and the British Supplementary Treaty of the Bogue, signed Oct. 8, 1843, provided for the payment of a large indemnity by China, cession of five ports for British trade and residence, and the right of British citizens to be tried by British courts. Other Western countries quickly demanded and were given similar privileges.

Last Update: December 16, 2000

Armed Conflict Events Database

Armed Conflict Events Data (ACED) is an research project providing independent information about known wars, international disputes, civil wars, rebellions, coups, revolutions, genocides and other violent conflicts. ACED has been online since December 2000. Various partial revisions and modifications have been implemented since then, however, the limitations of the this format hamper further development. During 2005, the decision was made to radically restructure the available conflict information into a database. The new Armed Conflict Events Database (ACEDb) will substantially increase the utility of available conflict data for students of military history. As well, it will offer expanded opportunities to add and edit records of conflict. Existing research material will be maintained in its present form but no revisions are planned. More news about the development of ACEDb may be found at News About the Armed Conflict Events Database. Feedback is welcome.