The Sino-Japanese War was fought between 1894-1895 over control of Korea. While smaller incidents contributed, the primary cause was the Tonghak Rebellion in Korea and China and Japan's decision to send troops to respond. Japan had a military advantage due to recent modernization. They defeated Chinese land and naval forces, culminating in the Treaty of Shimonoseki where China ceded control of Korea and paid war indemnities. Although brief, the war established Japan as an emerging power and weakened Chinese influence in the region.