<P> The Second Sino - Japanese War was a military conflict fought primarily between the Republic of China and the Empire of Japan from July 7 , 1937 to September 9 , 1945 . It began with the Marco Polo Bridge Incident in 1937 in which a dispute between Japanese and Chinese troops escalated into a battle . The conflict then escalated further into a full - scale war . It ended with the unconditional surrender of Japan on September 2 , 1945 to the Allies of World War II . </P>
<P> The Second Sino - Japanese War was a military conflict fought primarily between the Republic of China and the Empire of Japan from July 7 , 1937 to September 9 , 1945 . It began with the Marco Polo Bridge Incident in 1937 in which a dispute between Japanese and Chinese troops escalated into a battle . The conflict then escalated further into a full - scale war . It ended with the unconditional surrender of Japan on September 2 , 1945 to the Allies of World War II . </P>
who was china fighting in world war 2
who was china fighting in world war 2
the Empire of Japan
the Empire of Japan