As someone who was only watched the Doraemon anime, I never in my wildest dreams would have imagined that in the manga they would openly talk about the war, and even portray some japanese soldiers there in a negative way
Yep George HW Bush manage to avoid being eaten when his plane crashed and he manage to stay away from the island. link.
I think part of the military style for japan during those times was is to live off the land or something along those lines.