the Jewish resistance under Nazi rule = ?

the Jewish resistance under Nazi rule = the Jewish resistance against Nazi in the environment of Nazi rule?

Yes

If there's a resistance supporting Nazi, how to express?

You would not typically use "resistance" to describe support, but if there was a country or ideology that was known, almost soley, for it's opposition to Nazis, then I suppose readers might follow that to resist this country or ideology was tantamount to supporting Nazis.

I think that if you wanted to express that a particular resistance movement supported Nazis you would best do so explicitly.
Context:

Leonard Mlodinow is a physicist and author.

Mlodinow was born in Chicago, Illinois, of parents who were both Holocaust survivors.[1] His father, who spent more than a year in the Buchenwald concentration camp, had been a leader in the Jewish resistance under Nazi rule in his hometown of Częstochowa, Poland.[1] As a child, Mlodinow was interested in both mathematics and chemistry, and while in high school was tutored in organic chemistry by a professor from the University of Illinois.

As recounted in his book, Feynman's Rainbow, his interest turned to physics during a semester he took off from college to spend on a kibbutz in Israel, during which he had little to do at night beside reading The Feynman Lectures on Physics, which was one of the few English books he found in the kibbutz library.[1]

If there's a resistance supporting Nazi, how to express?