The Second-Sino Japanese War was an eight-year conflict between the Empire of Japan and the Republic of China in the years of July 7, 1937 and September 9, 1945.
This Sino War was not the first and a previous conflict was fought between the same countries forty two years prior in 1894. The war began as a way to expand the Japanese Empire, adding more chances to take land and resources from China while also gaining more power over the entire continent of Asia. Japan surrendered in 1945 and the Empire was dissolved, ending the Second Sino-War effectively.
History
Japanese aggression in the Pacific has been a constant since the start of the 1930's. The Empire had efficiently broken away from the League of Nations and began to conquer countries with smaller governments. One notable country being Manchuria, which had been taken over by Japan six years ago.