The Qing Dynasty.
There were a number of Wars during the reign of Queen Victoria. The related link below will inform you about them.
the negative trade balance between Britain and China
The Chinese Vs. the Brits and French. See related link below.
Britain, France and the United States vs. China (Qing Dynasty)
The British won the first and second Opium War.
The tea and Opium trade
There were 2 Opium Wars, the First Opium War was from 1839-1842 the Second Opium War was from 1856-1860
they got it from India then manufactured the opium
Britain and China
China.
The tea and Opium trade
Two.
The opium wars were never signed. Wars are declared or undeclared, not signed.
Britain won the two Opium Wars. They won the world. They instituted the UN to control the world. They used the UN to pass the Single Convention on Narcotic Drugs. The SCoND compelled all the nations to begin Wars on Drugs. The Mexico Drug War is the newest iteration of Mexico's War on Drugs, as dictated by the SCoND.
The Opium wars ruined the Chinese functioning society
selling opium