Some people close to power in Russia (Dugin) actually seem to believe Russia natural range is from Lisbon to Vladivostok.
"Putin channels ultranationalist discourse, such as the Izborsk Club and the neo-fascist Alexander Dugin, in calling for quasi-religious rebirth of Russian dominance, an agenda that seeks to swallow “Little Russia” into a renewed Russian empire that stretches from “Lisbon to Vladivostok,” a phrase popularized by Dugin and repeated by Putin."
"Putin channels ultranationalist discourse, such as the Izborsk Club and the neo-fascist Alexander Dugin, in calling for quasi-religious rebirth of Russian dominance, an agenda that seeks to swallow “Little Russia” into a renewed Russian empire that stretches from “Lisbon to Vladivostok,” a phrase popularized by Dugin and repeated by Putin."
https://brill.com/view/journals/joah/4/1-2/article-p126_10.x...