Re: I am telling YOU that Ukrainians are allergic to Poles

"it would be more useful to everyone if Poles started talking about their crimes against Ukrainians, Belorussians, and Russians. Pretending to be an innocent victims is kinda old..."
I haven't said that Poles didn't commit crimes againts Ukrainians, Belorussians and Russians,


" Polish operational planning involved an offensive against East Prussia with the purpose of occupying it and incorporating into Poland. Ridiculous as it sounds in retrospect."
I wasn't able to find any info about it, could you give me a hint about the sources I should look for?