Oleg Morozov, a member of the Russian parliament and an ally of President Vladimir Putin’s, made what sounded much like a threat in May 2022. Poland should be “in first place in the queue for denazification after Ukraine,” he said. Just days earlier, pro-Putin Moscow city assembly member, Sergey Savostyanov, asserted that after Ukraine, Russia needs to drive alleged Nazis from power in six more countries: Estonia, Latvia, Lithuania, Poland, Moldova and Kazakhstan. Just a few months following the Russian invasion of Ukraine, which was made under the false pretense of denazifying the government of that country, such claims might...