Patrushev also said the US government is planning to recognize Russia as a terrorist country, some countries like Lithuania have already officially assigned such status to Russia.
Russia invaded Ukraine in a "special military operation" on February 24, to "denazify" and "demilitarise" its neighbour.
“Nazism must either be 100% eradicated, or it will rear its head in a few years, and in an even uglier form,” Patrushev said in an interview.
The US views Russia's attacks in Ukraine as an invasion.