Sino-Japanese Wars
/ˈsaɪnəʊˌdʒæpəniːz/- two wars (1894-5,1937-45) fought between China and Japan中日战争（中国与日本之间的两次战争[1894-1895,1937-1945]）。
The first war, caused by rivalry over Korea, was ended by a treaty in Japan's favour and led to the eventual overthrow of the Manchus in 1912. In the second war Japanese expansionism led to trouble in Manchuria in 1931 and to the establishment of a Japanese puppet state (Manchukuo) a year later.