Just found this, a very interesting read. I knew that some Japanese continued to resist after WWII had ended and, while this is an extreme case, sheds some light on some of the underlying attitudes of those soldiers. This particular fellow's story is fascinating, as is the story of what he did with his life after "surrendering" 27 years after the war.
http://www.todayifoundout.com/index.php/2010/02/a-japanese-soldier-who-continued-fighting-wwii-29-years-after-the-japanese-surrendered-because-he-didnt-know/I'd be interested in hearing if there is any additional material out there on the subject.