The Opium Wars

The Opium war was during the Imperialism in China. The western Europeans were still exploring places, trying to find new resources. In China, they've found tea. The British only had one port in China. The British didn't like it, so they decided to trade Opium to the Chinese people for their tea. The people in China realized that it was a dangerous drug and they make it illegaly, and whoever uses it could die as a result.