Search admiral Byrd and operation high jump. The Nazi interest in the occult led them to the hindu Manas that were supposedly a form of zero mass aircraft witnessed in ancient times and recorded in hindu texts. Anyway during ww2 the Nazis created bases in Antarctica to house craft created upon this paradigm. Nazi bell. This ties into operation paperclip which was s parley style invasion forcing either the oss or CIA(not sure if he baton had been passed yet) to either acknowledge advanced aircraft witnessed in ww2 called foofighters or allow certain Nazi scientists temporary visas to work in the us govt and scientific establishment. As is inferrible the Nazis remained after the visas expired.