The Wehrmacht, History, Myth, Reality

[Meneldil]

Sorry maybe some sources?

No way out: the politics of Polish Jewry, 1935-1939, by Emanuel Melzer.

And before you even type it, here's your answer :

Jewish-Israeli anti-Poland propaganda

Now, while we're at it, the only reason Jews have traditionnally supported communism in Europe is only because they were treated as second-class citizens in their own countries (Poland, Germany, Italy, Hungary). Communism in theory could have offered them a true equality (though in reality, it's wasn't quite the case).