The Chinese blockade (1839)- China blockaded the settlement in Canton, demanding the surrender of goods. In response to the opium addiction, they seized over 1000 tons and burned it. Lord Palmerston wanted to defend the opium traders so sent the Royal Navy, beginning the use of Gunboat diplomacy. The steam-powered British ships defeated the Chinese boats, seizing Canton and dictating the new terms of the base. They seized the island of Hong Kong that had one of the best deep-water harbours in the world.