Did the Third Reich collaborate with aliens?

There is no evidence to suggest that the Nazis collaborated with aliens or that aliens collaborated with the Nazis. Germany was technologically and scientifically advanced for it's time, but their accomplishments are rooted in human ingenuity. Stop watching mockumentaries and start learning the real history.

You call yourself "History," but your questions are so odd that they suggest a failure to understand the subject.

No. There is not a single shred of credible evidence supporting the notion that extraterrestrials had anything to do with the Third Reich.

Stop watching the History Channel. It's not real history.

No, just no.

Aliens don't communicate with us because we are too busy fighting each other.

The Nazis considered anyone other than a "pure aryan" to be aliens. Even in the 1970s when I lived there for three years, if you weren't native-born German, you were "ein auschlander"...

Aliens are way smarter than that. They collaborated with the Swiss.

No. The Third Reich had enough issues with terrestrial foreigners, let alone anyone from anywhere... Elsewhere.

And that's before we get into the frankly insurmountable issues of how, why, or where they then went?

And what would they have got out of it? Technology that happens to be exactly what humanity was capable of at the time? Instructions to murder a bunch of people? There's just no rhyme or reason to any aspect of such an assertion, and the longer I think about it the madder it seems.

......I highly doubt it.

No, the Catholic Church is not run by aliens.