There have been at least three known wars that have been fought between China and Japan. The most well known occurred from 1868-1931 and then again in 1937.
I'm not sure about all of them, but they definitely participated in WW2
China has fought 35 wars in total.
== == == ==
Vietnam
1000
none
Japan has fought in numerous international wars. In order to get a proper answer to this question you need to specify which war and which nations inapposite Japan you are referring to.
There were four "Wars for Empire" fought between 1689 and 1763.
there were and are many wars being fought, where? Please be more specific. where was the creek war fought?
These wars are known as World Wars because many countries of the world fought in the war
Many American nations fought wars of independence.