Preface: We heard close encounter of the 3rd kind. But tons of news report that people discovered UFO in the sky.

Historical background:
1942, over Los Angeles, California.Initially, the target of the aerial barrage was thought to be an attacking force from Japan, but Secretary of the Navy Frank Knox, speaking at a press conference shortly afterward, called the incident a “false alarm.” A small number of modern-day UFO experts say the targets were extraterrestrial spacecraft.

Nazi Bell not a myth:
The Nazi Bell uncover by Igor Witkowski , a Polish former journalist.

Synopsis: We heard the rumors that Nazi Bell are able to fly in light speed, capable to go to worm hole. In short they can provide a time traveler function. As a matter of fact, I speculate that Nazi leader has doubt why UFO allow non-stop flying. As we know, during world world II nuclear power for energy not found yet. As a result, The objective of Hitler keen to design a nuclear power energy aircraft. Attached picture is my draft based on my understanding.

Should you have interested of above item, please refer below url.

https://www.express.co.uk/news/weird/522518/German-documentary-claims-Roswell-UFO-Nazis