Further disputes with China after the Treaty of Nanking led to the Second Opium War, which began even as the Indian Rebellion of 1857 was being suppressed. A combined British-French-American force defeated China again, with the Chinese government being forced to sign yet another unequal treaty. In 1900, British and Indian troops took part in the fighting against the Boxer Rebellion. In Burma in 1886, disputes over the treaties signed earlier in the century between Britain and Burma led to the Third Anglo-Burmese War, after which the entire country was finally annexed to Britain.