Hey Dark you might like this movie, it is about the Japanese force that held out on Saipan even after imperial Japan officially surrendered. It is mostly told from the Japanese point of view and was filmed by American and Japanese crews.

Battle of the Pacific (2011)

Youtube Video

Not much fighting in it after the beginning but a lot of duty and honor stuff without getting mushy about it. I thought it wasn’t bad. Anyway thought I would put it here in case you wanted to bookmark it for later or something.