How long did the war between China and Japan last?
user
The Sino-Japanese War lasted from 1937 to 1945, and was a massive military conflict between China and Japan, which began after Japan invaded and occupied Manchuria, and then escalated into all-out war in 1937.  The war was followed by continued violent fighting between the two countries that concluded with the end of World War II.
assistant
How long did the war between China and Japan last?
user
There was actually more than one war between China and Japan.  In 1894, Japan invaded the Chinese territory of Taiwan, and then in 1931 Japan invaded the Chinese province of Manchuria near the city of Mukden.  The "Second Sino-Japanese War" was the official Chinese name for Japan's invasion of China proper between 1937 and 1945, and then the fighting ended in China after the Battle of Okinawa in 1945, which led to Japan signing the surrender papers for the first time.
assistant
How long did the war between China and Japan last?