Several German troops stationed at a weather station on Spitsbergen weren't able to formally surrender until they were picked up by Norwegians in September 1945, four months after the end of hostilities.
He dismissed all leaflets, newspapers etc. that were dropped for him as propaganda, since they showed Americans living with Japanese side by side, and if Japan had lost, all Japanese would have obviously died fighting. He published interesting, but not that truthfully ghost-written memoirs (he does not mention that he killed several islanders).
This guy came out of hiding 50 years after the end of WW2
(Mentioning this for the similarity to operation Zitronella and because StrangeHistory.net is an interesting site)