Let's imagine the Disputed Island Chain gets out of hand and both sides declare war on eachother.
Due to a wish to preserve/obtain the disputed Islands, nuclear weapons will not be used only conventional military forces.
Who would win?
For a complete military comparison source look here:
China vs. Japan Military Match-Ups
Tatics, Personnel, guns, fighter aircraft, tanks, warships, missiles and other weapons systems
Make your comparisons now