[A. Pole]

Yes, the pogroms were mostly within what is now Ukraine, Belarus, and Moldova, all then parts of the Czarist Russian empire. Jews had already been restricted to the Pale of Settlement by that time and weren't allowed to live in Russia proper. The policies of forced conscription, forced assimilation, and eventually extermination came from the Czarist government.

The worst atrocities took place in XVII century and at that time the area was under Polish rule (and Poles were among the victims too). Forced conscription or draft applied to all ethnic/religious groups. Russia did not have a volunteer army. Extermination?! First time I hear something like that.

[anotherview]

I would humbly suggest that you do some research on "The League of Russian People" a/k/a the Black Hundreds, who organized the pogroms of 1905-06. They were pro-Czarist, used to put down revolution and instill terror, and their stated policy towards the Jews was extermination and they were (albeit unofficially) backed and funded by the Czarist government.

[HeidiHi]

"The worst atrocities took place in XVII century and at that time the area was under Polish rule (and Poles were among the victims too)."

The worst atrocities took place during the Holocaust when the Nazis together with their countless collaborators in Eastern and Central Europe murdered millions of Jews.