Answer:
Opium Wars
Step-by-step explanation:
An important result of Britain's refusal to stop selling opium to China in the 1800s were the Opium Wars. The Opium Wars were two wars in the 19th century that involved the Great Qing of China and the government of Great Britain. These wars began due to the conflict between China and Great Britain when it came to the export of opium. It resulted in the concession of Hong Kong, as well as the weakening of the Qing dynasty.