"When the Jews finally staged the uprising in April 1943, the Polish underground refused them almost every form of assistance. Even though they were facing the same enemy, even though their country was occupied, the Poles could not overcome their anti-Semitism and join the Jews in the struggle for the freedom of both groups, and instead chose to stage a separate Polish uprising more than a year later."
January 1, 1970
https://en.wikiquote.org/wiki/Irena_Klepfisz