Again, as we've seen here time and again.
It is interesting the amount of people who automatically assume the rifle they possess was used in the Pacific. The scale of the battles on mainland China was much larger and as such drew in significantly more arms than the Pacific Island hoppings did. It's almost like we tend to ignore the reality of the situation in favour of a romanticized notion of its history.
They'd been at war at least ten years by 1945...
All most all of the Japanese rifles in the US were used in the Pacific or are from post surrender Japan . Most used in China stayed in China , with a small number of those being imported post war to the US .