UFOs are combination of human breakaway civilization from inside Earth and a result of black-budget-programs and reverse-engineering of crashed / downed craft created by breakaway civilization. It all originated first from the Third Reich and the NeuSchwabenLand bases under miles of ice in the Antarctic and the inside of the Earth. Vril, Haunebu, letter from Admiral Karl Donitz, Admiral Byrd, Foo-Fighters, Operation HighJump - read about that and connect the dots - they all lead to the same conclusion - German elite before WWII, during and after went to the inside of the Earth and created there a breakaway civilization and they are the source of the "anti-gravity" (there is no "gravity" as we are told, it is a force similar to electromagnetism and it can be manipulated) UFOs in many different shapes such as saucer, bell, cigar, triangle etc. It is a fact, that there are openings to the inside of Earth at both poles. Admiral Byrd is not the only one who went there.
1. Interview with Admiral Byrd:
https://www.youtube.com/watch?v=TPVXspVhF2s2. The Smoky God by Willis George Emerson:
https://www.youtube.com/watch?v=MD_VQHYFb1YThere is also this one big issue with "UFOs turning American nukes on and off":
https://www.cbsnews.com/news/ex-air-force-personnel-ufos-deactivated-nukes/It was Germans from the NeuSchwabenLand in the inside of the Earth who did that as a technological show of power. Also remember when few high-profile people like Orthodox Church Patriarch Kiril, Buzz Aldrin, John Kerry, Minister of Defense of New Zealand, Prince Harry of Great Britain, King Juan Carlos of Spain, Tom Hanks and possibly Barack Obama went to Antarctica? It was a diplomatic meeting with the government of NeuSchwabenLand Germans. Nothing is as it seems. Truth is stranger than fiction.
Also, interest in Lake Vostok in Antarctica is more of a military, than "scientific" nature:
https://www.livescience.com/18369-success-russian-team-breaches-buried-antarctic-lake-vostok.html