Hail Columbia,
I can answer your question about Ukrainians, so that you can think of another question for Chaim.
HC, the Ukrainians are a demonic race who make the Arabs, Germans, and Croats look like model citizens. They had engaged in pogroms for the entire history of their nation, but in WWII, their true colors really came out and they became the most enthusiastic local allies the Germans ever had. The fact is that they were more murderous and torturous than the SS itself, and even scared the Germans with their ferocity. The Ukrainians directly murdered hundreds of thousands of their own Jews (scarcely needing any German encouragement) in simply unspeakable ways.
Just Google the subject any time you like.
I don't know if every single Ukrainian is a fiend, but my guess is that well upwards of 95% are. I used to know one at church, and she seemed to be a nice girl, but she never said how she felt about Jews, so I couldn't tell you that she was a real exception.
Chaimfan