Ukranians in the Donbas, Crimea and Crimea

There were strong incentives to learn russian and to live into soviet space as a no soviet citizen with your ucranian identity. The far west, the part that was under polish administration before the war, where you didn't have the the a codemar taking place, but you watched as your kinsmen were dying from starvation. That's where right sector and other righting nationalist groups have their headquarters and have theire a base. They retain a much stronger use of Ucranian language and a very long historical memory of a suffering under rRussian administration.