The Battle of Baguashan (Chinese: 八卦山戰役), the largest battle ever fought on Taiwanese soil, was the pivotal battle of the Japanese invasion of Taiwan. The battle, fought on 27 August 1895 near the city of Changhua in central Taiwan between the invading Japanese army and the forces of the short-lived Republic of Formosa, was a decisive Japanese victory, and doomed the Republic of Formosa to early extinction. The battle was one of the few occasions on which the Formosans were able to deploy artillery against the Japanese.