Donghak Revolution, and First Sino-Japanese War, 1894
The outbreak of the Donghak Peasant Revolution in 1894 changed Japanese policy toward Korea. The Korean government asked for Chinese assistance in ending the revolt, and Japanese leaders decided upon military intervention to challenge China. When China sent troops into Korea, Japan responded by sending its own troops. Japan won the First Sino-Japanese War, and China signed the Treaty of Shimonoseki in 1895. Among its many stipulations, the treaty recognized "the full and complete independence and autonomy of Korea," thus ending Korea's tributary relationship with the Chinese Qing Dynasty, leading to the proclamation of full independence of Joseon Korea in 1895.
At the same time, Japan suppressed the Donghak Revolution with Korean government forces, which had solidified Japanese military predominance than any other country in Korea.